Flat and low-slope roof replacement, that actually drains.
Additions, porches, and commercial buildings across the Denver Metro rely on flat and low-slope roof systems, and getting the membrane and drainage right is what keeps them from becoming a recurring leak.
A straight read on the roof over your building: what's wrong, what it costs to fix versus replace, and a plan that keeps you open while the work happens.
- ★★★★★4.8 on Google · 147 reviews
- Licensed & insured
- No obligation
How it works
- 01Free Roof InspectionFreeWe get up on the roof, check every slope, and show you what we found in plain terms. No pressure, no obligation.
- 02Insurance & EstimateNo guessworkHail or wind damage? We document it and work with your insurance company for you. Either way, you get a clear written estimate first.
- 03Construction1–3 daysOur crew tears off and installs your new roof while your project manager keeps you updated, then cleans up until there is not a nail left.
- 04PreventionOngoingA final walkthrough and simple maintenance advice so your new roof lasts. We are a call away whenever the next storm rolls through.
Bring Precise Roofing any written competitor quote for the same scope of work and we will beat it by $500, or we hand you $500 and send you on your way, no hard feelings. Either way, you come out $500 ahead.
Why ponding water is the clock
On a low-slope roof, standing water finds every seam. A recover done before the deck is wet is a fraction of a tear-off after it is.
Precise Roofing replaces flat and low-slope roof systems on additions, porches, and commercial buildings across the Denver Metro. A low-slope roof cannot rely on gravity to shed water the way a steep shingle roof does, which is why it needs a continuous membrane system, not shingles, and why drainage has to be built into the design rather than left to chance. We install and replace these systems on residential additions and full commercial roofs alike, working alongside our shingle, metal, and tile crews on the same properties when needed.
Is water pooling on your flat roof instead of draining off?
Standing water after a rain, rather than a roof that drains clear within a day or so, is the clearest sign of a drainage or slope problem on a flat roof. It usually means the roof was not built or repaired with enough pitch toward the drains, or the drains themselves have settled or clogged. Ponding water is not just cosmetic: the weight adds stress to the structure below, and any spot where the membrane has a pinhole or seam gap turns into a leak much faster when water is sitting on top of it instead of running off.
Signs your flat or low-slope roof needs replacing
Standing water after rain
Puddles that sit for more than a day or two point to a drainage or slope problem, and the added weight stresses the roof structure over time.
Cracked, blistered, or brittle membrane
A membrane that has lost its flexibility from age and UV exposure develops cracks and blisters that let water through at the weakest points first.
Leaks at seams or wall flashing
Flat roofs leak most often at seams between membrane sections and at the flashing where the roof meets a wall or parapet.
Visible sag from ponding weight
A roof that dips where water tends to collect is showing early structural stress from repeated ponding, and it gets worse the longer it sits.
What we look at before recommending replacement
Membrane age and condition
We check how brittle or blistered the current membrane has become, since that determines whether a repair will hold or a full replacement is needed.
Drainage and slope
Poor slope toward the drains is a design problem, not just a maintenance one, and it needs to be corrected during a replacement, not patched around.
Flashing at walls and parapets
Flashing failures at these transitions are a common leak source and get addressed as part of any low-slope job.
Structural condition under ponding areas
Where water has been sitting for a long time, we check the decking and framing underneath for stress before finalizing a replacement plan.
What to expect during the visit
We start with an inspection of the membrane, seams, flashing, and drainage across the roof, and we check ponding areas for any sign of stress underneath. On replacement day, the old membrane comes off, any damaged decking gets addressed, and a new membrane system goes down with attention to slope and drainage at the low points. Flashing at every wall and penetration gets reset as part of the job. For our commercial clients, we coordinate the timeline around building use, and a project manager keeps everyone updated as work progresses.
Related services you may need
For commercial buildings, this work is part of our broader commercial roofing services, including TPO, EPDM, and modified bitumen systems. If a single leak or seam issue is the problem rather than roof-wide membrane failure, our repair team can often handle it without a full replacement.
The cost of waiting
A flat roof with a drainage problem does not fix itself, and ponding water tends to get worse as the membrane ages around it. What starts as a slow leak at one seam can spread as more of the membrane loses its flexibility, and the added weight of standing water puts ongoing stress on the structure below. On commercial buildings especially, a delayed replacement often means interior and inventory damage that costs more to address than the roof itself.
Why can't I just put shingles on a flat roof?
Shingles rely on gravity and overlap to shed water, which only works on a steep enough pitch. On a flat or low-slope roof, water sits long enough to work its way under shingle overlaps, so a continuous membrane system is used instead.
What membrane options are available for a flat roof replacement?
Common options include TPO, EPDM, and modified bitumen, each with different tradeoffs in durability and installation method. We walk through which option fits your roof and budget during the inspection.
How much does flat roof replacement cost in Denver Metro?
Cost depends on the size of the roof, the membrane type chosen, and how much drainage or structural correction is needed. We explain the factors driving the estimate before any work begins.
If your flat or low-slope roof is pooling water or leaking at the seams, call Precise Roofing for an inspection anywhere in the Denver Metro. We will give you a straight read on whether it needs a repair or a full membrane replacement.
Ready when you are.
A free estimate in writing, from a crew that actually shows up.
What homeowners say about flat & low-slope roof replacement.
“I am so happy I found Precise Roofing! I needed a complete roof restoration on my house and garage due to hail damage. Victor and Ben were professional, honest, great communicators and very helpful with the insurance…”
“The whole team at Precise Roofing were absolutely wonderful to work with, helping me get a roof replaced and doing it within the confines of a fast moving Real Estate timeline.…”
“Curtis and his team at Precise Roofing were wonderful. they worked with me, my insurance company and the various subcontractors to complete my roof replacement quickly and professionally.…”
“Roof looks great, delt with insurance explained everything in detail, and clean up after, not a nail to be found.”
“Great company with great ownership! They’re experienced professionals, and it shows. Our project manager was Curtis and he was great. He handled everything after we got hit with a hailstorm and even got us extra money…”
“Victor was wonderful to work with! He was honest and up front with the entire process and was always available if we had questions or concerns.…”
“I am so happy I found Precise Roofing! I needed a complete roof restoration on my house and garage due to hail damage. Victor and Ben were professional, honest, great communicators and very helpful with the insurance…”
“The whole team at Precise Roofing were absolutely wonderful to work with, helping me get a roof replaced and doing it within the confines of a fast moving Real Estate timeline.…”
“Curtis and his team at Precise Roofing were wonderful. they worked with me, my insurance company and the various subcontractors to complete my roof replacement quickly and professionally.…”
“Roof looks great, delt with insurance explained everything in detail, and clean up after, not a nail to be found.”
“Great company with great ownership! They’re experienced professionals, and it shows. Our project manager was Curtis and he was great. He handled everything after we got hit with a hailstorm and even got us extra money…”
“Victor was wonderful to work with! He was honest and up front with the entire process and was always available if we had questions or concerns.…”
“I am so happy I found Precise Roofing! I needed a complete roof restoration on my house and garage due to hail damage. Victor and Ben were professional, honest, great communicators and very helpful with the insurance…”
“The whole team at Precise Roofing were absolutely wonderful to work with, helping me get a roof replaced and doing it within the confines of a fast moving Real Estate timeline.…”
“Curtis and his team at Precise Roofing were wonderful. they worked with me, my insurance company and the various subcontractors to complete my roof replacement quickly and professionally.…”
“Roof looks great, delt with insurance explained everything in detail, and clean up after, not a nail to be found.”
“Great company with great ownership! They’re experienced professionals, and it shows. Our project manager was Curtis and he was great. He handled everything after we got hit with a hailstorm and even got us extra money…”
“Victor was wonderful to work with! He was honest and up front with the entire process and was always available if we had questions or concerns.…”
“I am so happy I found Precise Roofing! I needed a complete roof restoration on my house and garage due to hail damage. Victor and Ben were professional, honest, great communicators and very helpful with the insurance…”
“The whole team at Precise Roofing were absolutely wonderful to work with, helping me get a roof replaced and doing it within the confines of a fast moving Real Estate timeline.…”
“Curtis and his team at Precise Roofing were wonderful. they worked with me, my insurance company and the various subcontractors to complete my roof replacement quickly and professionally.…”
“Roof looks great, delt with insurance explained everything in detail, and clean up after, not a nail to be found.”
“Great company with great ownership! They’re experienced professionals, and it shows. Our project manager was Curtis and he was great. He handled everything after we got hit with a hailstorm and even got us extra money…”
“Victor was wonderful to work with! He was honest and up front with the entire process and was always available if we had questions or concerns.…”
- Full tear-off and replacement in shingle, metal, tile, and flat systems, with the site cleaned up before we leave.