Lift equipment staged in a parking lot beside a flat commercial roof under repair, with workers along the roof edge

Commercial Roof Repair in Colorado

Something is leaking on a flat or low slope commercial roof. Semper Fi Roofing finds where the water is really getting in, fixes it, and tells you straight whether the fix will hold or whether you are looking at the whole roof.

What a Repair With Us Includes

What a Repair With Us Includes

You get photographs of your own roof and a plain explanation of where the water came in. That's the part most owners have never been given. The roof walk and the estimate are free.

We also tell you when a repair is genuinely enough. Nobody here is trying to turn a split pipe collar into a re-roof. A straight answer on that is worth more than any badge.

We carry general liability and workers compensation insurance, so that risk sits with us rather than with your building. Everyone we send out has had a background check. We have Spanish-speaking team members available where that helps on site. Financing through Hearth is there for the work a claim does not cover.

We've got about twenty years of hands-on roofing experience behind us. On a leak, that mostly shows up as fewer return visits.

Finding Where the Water Gets In

Finding Where the Water Gets In

The wet ceiling tile is almost never underneath the hole.

Water gets through the roof at one point, then runs along the deck, down a beam, or across the top of a ceiling before it finally drops. By the time it reaches the floor, it can be a long way from where it started.

That is why a repair that starts at the stain usually does not last. We start on the roof instead.

  • We walk the whole area, not just the spot above the leak.
  • We photograph what we find so you can see what we are looking at.
  • We trace the water back to where it entered.
  • We check the insulation around it because wet insulation changes the repair.

Once we find the failure, we cut out what is damaged rather than covering it up. If the insulation underneath is wet, that comes out too. New material goes back in and gets tied into the sound roof around it. If the leak started at a curb, seam, or other detail, we rebuild that detail instead of smearing sealant over it. Then we water test the repair before we leave.

Cold weather can change how we handle it. Some materials will not bond properly below certain temperatures. When that happens, we make the roof watertight and come back for the permanent repair when conditions allow. We tell you which kind of repair you are getting and why.

The patch may not disappear into an older roof. What matters is that the water stops.

When a Storm Caused the Damage

Hail and wind damage can sit unnoticed on a commercial roof until the building starts leaking. When a storm is involved, good documentation matters.

  • Photographs showing the damage and where it sits on the roof.
  • An estimate that clearly lays out the repair scope.
  • Supplements when the approved scope leaves necessary work out.

We handle the estimating and supplementing in house rather than handing it off to a third party.

Not every roof problem is an insurance claim. Age and ordinary wear are different from sudden storm damage, so we figure out what caused the problem before telling you to file one.

Where We Do This Work

We repair commercial roofs across the Greater Denver Area.

See All Service Areas

Where Flat Roofs Usually Start Leaking

Hardly ever in the middle. Leaks start where the roof stops being a flat sheet. Anywhere it turns a corner, or lets something through it.

  • Seams. Where two pieces of the surface join. Age, movement and a bad weld all open them up.
  • Drains. The one place the whole roof is trying to send water. The seal around a drain works harder than anything else up there.
  • Penetrations. Every pipe, vent and conduit that comes through the roof is a hole somebody sealed once.
  • Rooftop frames. The raised bases under heating and cooling units. Detailing here is where a lot of leaks begin.
  • Edges and the low walls around them. Wind gets under a loose edge and works it, and the join at a parapet wall is a classic.
  • Skylights and hatches. Same problem, larger.

Then there's what the weather does. Hail bruises and splits a membrane the way it bruises a shingle. Hard wind lifts an edge and creases the surface behind it. Big day to night temperature swings work the seams loose over years. Sun at this altitude ages the top layer faster than it does lower down.

A blister or some surface cracking with no leak behind it is worth knowing about. Not worth panicking over. A split that has gone all the way through is a different conversation.

Repair or Replace

This is the question building owners actually want answered.

Patching is the right call while the problem is genuinely in one place. It stops being the right call once the same roof needs a visit every season. At that point the patch budget has quietly turned into the replacement budget, without anyone deciding it should.

A repair is genuinely enough when:

  • The leak traces back to one seam, drain, pipe or frame.
  • The rest of the roof tests dry.
  • No insulation has taken on water.
  • The surface still has real life left in it.
  • The roof is not already carrying several old roofs underneath.

A contractor should be able to show you why, not just say so. Photographs, a moisture check, and the path the water took.

Patching has gone too long when:

  • The same areas keep failing, in different spots each time.
  • Water sits on the roof after every rain and never clears.
  • Insulation has gone wet, and wet insulation cannot be dried in place.
  • The surface is brittle, shrinking or splitting in more than one area.
  • Repairs have become an annual line in your budget.

When it lands on that side, the honest answer changes. This is a whole roof conversation rather than a repair one.

One question hardly anybody gets asked, and it changes the answer. How long do you plan to hold the building? A roof with two years to run is a different decision from one with twenty.

  • Commercial Roof Replacement

    For a roof that has run out of patching, or one holding water it cannot shed.
    Learn more
  • Commercial Roof Maintenance

    A walk over the roof in the spring and again in the fall, written up and photographed.
    Learn more
  • Commercial Roofing

    Everything we do on flat and low slope buildings.
    Learn more

What Building Owners Say

  • Issifu HarunaIssifu Haruna

    He was very honest with me.

    September 2026

  • Adam MaykaAdam Mayka

    Josh with Semper Fi came to look at my roof after the most recent hail storm and couldn’t have been nicer. He was honest, thorough, and explained everything about the inspection process in great detail. His attention to detail and communication made it a very comfortable experience. Albeit we don’t need a new roof, when that time does come I will be using Semper Fi and I will recommend them to all of my friends and neighbors

    August 2026

  • Melissa JonesMelissa Jones

    We had some hail damage to our roof recently. Josh with Semper Fi Restoration came to the house, he was very knowledgeable and trustworthy. During the inspection he showed us our roof with a drone. Pretty cool. Very professional and courteous with very fair pricing.

    August 2026

  • M JonesM Jones

    Josh was great! Very straightforward and amazing! Got down to business and took care of issues we had with roof. I’ll be more than happy to recommend you guys to anyone. Thanks again Josh!

    August 2026

  • Jan ClevelandJan Cleveland

    We had a small job - just adding gutter covers. Semper Fi was the BEST. Arrived on time, cleaned out the gutters, installed the gutter covers in record time. Very professional. This company is a class act!

    August 2026

  • Todd ReynoldsTodd Reynolds

    Was very responsive. I was able to get what was needed in regards to our roof inspections on three houses quickly. And worked with our insurance agent getting the right information needed for our insurance needs. If you’re looking for someone that knows roofs and you need inspections or confirmations regarding your roof. Highly would recommend recommend this company

    August 2026

  • Zilvinas SutkusZilvinas Sutkus

    We had Semper Fi Restoration Inc. complete the roof on our 10,000 sq. ft. commercial building, and we had a great experience from start to finish. We had the opportunity to meet Joshua Bosley and worked mainly with Leo, our project manager. Leo’s communication throughout the entire project was top-notch. As with any large commercial roofing project, we ran into a few unexpected snags along the way, but the Semper Fi team stepped up and took care of every issue with no questions asked. They stood behind their work, kept us informed, and made sure everything was handled properly. It’s refreshing to work with a company that takes responsibility and follows through on what they promise. We are very happy with the finished roof and would definitely recommend Semper Fi Restoration Inc. to anyone looking for a dependable and professional roofing company. Thank you to Joshua, Leo, and the entire Semper Fi team for a job well done!

    August 2026

  • Robert LeiningerRobert Leininger

    Highly recommend Semper Fi. Bosley was great and easy to work with. Had a small project and they were able to get to and finish within a couple of days. The job was done right and professional and I’m vey happy with the price.

    July 2026

  • Marlena AntrimMarlena Antrim

    Josh Slankard with Semper Fi Restoration who orchestrated the entire roofing replacement and Paint Denver who made my 20 year old home look better than it ever did I send my heart felt thanks for you. I would recommend this company with 5 stars!

    July 2026

  • Michael MolinaMichael Molina

    There are a lot of Roofing Contractors out there so when I was referred Josh and his team by a close friend I knew there must be something different about them. From the first meeting with Josh and Daniel I felt comfortable and at ease. I had a lot of questions and they answered them without hesitation and in extreme detail which I appreciated. They helped me through the entire insurance journey and made sure I was covered before any work was done which helped lift that burden off my shoulders. Also, you will not find a Owner as diligent as Josh when it comes to QA/QC of the work done by his crews making sure the roof/gutters you get are up to HIS standards. I appreciate Josh and Daniel for getting the work done and definitely exceeded all my expectations. I don't usually write reviews but their work deserves some praise, I will definitely be referring them anytime I hear anyone I know is even thinking of getting or needing a new roof.

    July 2026

  • Larry WaltersLarry Walters

    We had a great experience working with Joshua Bosley and Semper Fi Restoration after our home suffered large hail damage. They are honest, trustworthy, professional and knowledgeable. They held subcontractors to their high standards. This has been the best experience we have ever had with a roof replacement and other hail damage repairs. Working with Josh, Kat, and the team was a pleasure. We highly recommend Semper Fi to others! Larry and Darlene W.

    July 2026

  • Pat KelleherPat Kelleher

    Josh and his crew provided exceptional service! He provided an estimate for what we needed, which wasn’t a full roof replacement. Professional, polite and knowledgeable - I highly recommend Semper Fi Restoration and will definitely use them in the future!

    June 2026

  • Zachary KochZachary Koch

    I wanted to take a moment to leave a review for Josh and his team at Semper Fi Restoration. Josh came out the same day we called to provide an estimate and inspect our roof, and a member of his team completed the repairs first thing the very next morning. We truly appreciated the quick turnaround, excellent customer service, and quality workmanship in repairing the damage to our roof. The entire process was smooth, professional, and stress-free. I highly recommend Semper Fi Restoration to anyone looking for a reliable and responsive roofing company!

    June 2026

  • Tim BroganTim Brogan

    Fantastic company, worked with the owner to get a hail damage claim on my house for a new roof. I highly recommend them to anyone looking for roofing and exterior services.

    June 2026

  • Lisa SmithLisa Smith

    When my insurance refused to pay for my hail damaged roof, Semper Fi worked with my insurance to successfully get them to pay. They helped me with the entire process and communicated well. They were always available if I had questions. Their crew did a good job. They cleaned up after themselves. I highly recommend this company.

    June 2026

  • Aubrey MoncktonAubrey Monckton

    I had a fantastic experience with Leo at Semper Fi Restoration Inc. He recently completed some roof repairs for me, and I couldn’t be happier with the results. Leo was professional, honest, responsive, and clearly takes pride in his work. He explained everything thoroughly, showed up on time, and made the entire process smooth and stress-free. The quality of the repairs was excellent, and it’s clear he genuinely cares about doing the job right. It’s hard to find contractors you can truly trust, but Leo absolutely earned my confidence. I highly recommend Leo and Semper Fi Restoration Inc. to anyone needing roofing work or repairs. Outstanding service from start to finish!

    May 2026

  • Hegon Henrique MedeirosHegon Henrique Medeiros

    Great company!! Hard to find people with morals nowadays! Highly recommend it

    May 2026

  • Michael KerrMichael Kerr

    Josh Bosley and Semper Fi Restoration recently completed hail damage work on our residence. Josh handled EVERYTHING with our insurance company. The work was completed on time, as promised. Clean-up was great. Josh came back and guaranteed we were happy with everything - including fixing two small areas that we felt needed additional work. He ensured we were 100% happy prior to moving on. He was a great communicator, very patient with us, and made us extremely happy that we chose him and Semper Fi. I rarely leave reviews - but would highly recommend him. Final note, our insurance agent recommended him to us and he was as great as advertised.

    April 2026

  • Chisa MendozaChisa Mendoza

    Willie & Leo were so helpful! They did a wonderful job with our restoration! I would highly recommend their services!

    March 2026

  • Anya CliffordAnya Clifford

    Leo was very helpful with our roof claim!

    March 2026

  • Sharine WebberSharine Webber

    Semper Fi Restoration recently completed installing a new roof and we are so impressed with the service from start to finish. Leo Jett thoroughly explained the whole process and answered all of our questions. He was a huge help with the insurance claims and demonstrated a sincere desire to make sure everything was done professionally and to the highest standards. The crew were hard workers and also demonstrated the same commitment to completing the job right. Leo always followed up with us and made sure we didn't have any concerns or questions. We highly recommend Semper Fi Restoration!!

    February 2026

  • Emilie MitchamEmilie Mitcham

    Leo Jett helped us with a roof repair on a rental. The insurance reimbursement process was a crazy exercise in patience but Leo walked us the whole way through with total mastery and knowledge. He was responsive and super friendly and I cannot recommend him highly enough.

    February 2026

  • Jeff CisnerosJeff Cisneros

    Josh is absolutely amazing, his service and follow-up is thr best I have ever experienced. The thing that really impressed me was his honesty after inspection, he shared that I didn't need a new roof. There are very few companies with that level of honesty. He has earned a customer for life.

    February 2026

  • Eric HollidayEric Holliday

    I've worked with Josh and Semper Fi for years now and he is hands down the best in the industry. Extremely knowledgeable about roofing and insurance. I've seen first hand how he works wit home owners & insurance companies and it's one of his specialties. Def recommend...

    January 2026

  • Judy BJudy B

    Leo Jett was fabulous! He walked me through every step of the process and made this a great experience. His customer service was more than I could have hoped for. After spending 25 years in the HOA business, Semper Fi would be a contractor I would recommend to anyone needing a new roof.

    January 2026

  • Benjamin lairdBenjamin laird

    Semper Fi Roofing does a great job. They know how to work with the insurance company taking care of everything. I would recommend them to all my friends and family

    January 2026

  • JennJenn

    Fantastic company. Owner noticed damage on the roof when he was working on our neighbors house. Gave us visuals of the current roof situation. I recommend this marine owned company and his employees. Awesome team!

    January 2026

  • sukhvir singhsukhvir singh

    Outstanding service from start to finish. Semper Fi Restoration Inc exceeded all expectations with their roofing work. Their professionalism, expertise, and attention to detail were second to none. The team was reliable, efficient, and truly cared about delivering top-quality results. I have nothing but respect for this company and highly recommend them to anyone needing roofing services. Thank you, Semper Fi, for an exceptional experience.

    December 2025

  • MattMatt

    We worked with Josh and his crew to get our badly damaged roof repaired. Josh had no hesitation to get over as soon as he could walk the roof spent hours doing his inspection to make sure everything was covered not one thing was left out. He was very thorough. I am a person that wants to understand everything and he had no hesitation to explain and walk me through every process. I highly recommend Semper Fi Restoration. They are honest and will get the job done right

    December 2025

  • Kristan DeLayKristan DeLay

    They provided great customer service, very responsive and easy to work with. Josh is very knowledgeable and was quick with everything while providing quality service. He assisted with the insurance from beginning to the end. Very smooth process. Roof looks very good!

    December 2025

Commercial Roof Repair Frequently Asked Questions

Will the repair match the rest of my roof?

No, and nobody's will. New material sitting against weathered material always shows. What matters is that the join is sound and the water stops. On a flat roof almost nobody sees it anyway.

Is a commercial roof repair covered by insurance?

It depends what caused it. Hail and wind damage is usually a claim. Age and ordinary wear usually aren't. Documentation is what carries a storm repair. Photographs and an estimate in your carrier's own format matter more than the size of it.

My roof is leaking over the electrical panel. Does that change anything?

Yes. Water over electrics, stock or equipment moves a job up the list, and it changes what we do first. The immediate priority becomes stopping water reaching that area, then working out the permanent fix. Say so when you call so we know from the start.

Can you repair a roof somebody else installed?

Yes, and a lot of what we repair is somebody else's work. It doesn't change how we trace the leak. One thing worth checking first is whether the roof is still under a manufacturer warranty. A repair by an outside party can end that cover. We'll ask you about it before we touch anything.

What if the repair doesn't hold?

Call us. We diagnose roofs from evidence, and occasionally a second leak sits behind the first one. It's also why we water test the repair before we leave.

What does it cost to have somebody look at it?

Nothing, whether the answer is a small repair or a conversation about the whole roof. If you already have a quote from somebody else, bring it and we'll go through it with you.

How far do you travel?

Colorado and Wyoming. If you aren't sure whether your building falls inside that, call and ask. It's a short conversation and you'll get a straight answer.

Find Where the Leak Starts

Tell us where the water is showing up inside and we'll come and find where it's getting in. Send us a photograph of the ceiling if you have one, and we'll set up a time to walk the roof.