Flat Roof Contractors in San Diego County


Competitive Pricing | Warranties Available | 50+ Years Experience | Family Owned | Free Estimates


Serving Escondido, Carlsbad, Vista and All of San Diego County Since 1982

Flat roofs look simple, but they fail in ways pitched roofs never do. Water puddling, seams tearing open, and small leaks expand to large repairs in no time. That is why owners call a flat roof contractor in San Diego that homes and businesses depend on. We install and repair all low-slope roofing systems, including TPO and torch-down roofing, and use certified materials at Christensen Roofing. 


Have water standing after each rainfall? We repair the drain, not the leak. As an experienced low slope roofing contractor, we handle homes, warehouses, and commercial buildings alike. From a flat roof repair North County owners turn to, to a flat roof replacement Escondido, our flat roof contractor San Diego crews have got it right.

What Our Flat Roof Service Consists Of?

Commercial Roofing

TPO and PVC Membranes

There is a reason why single-ply membranes dominate the flat roof market. We install TPO and PVC systems that reflect heat, are UV-resistant, and heat-weld to a watertight surface. Some cool roof choices reduce energy costs and are durable to rooftop HVAC activity. 

Commercial Roofing

Torch Down and Modified Bitumen

Nothing beats torch-down roofing in San Diego for rugged, layered waterproofing. Our torch-down roofing San Diego projects involve applying modified bitumen sheets with heat fusion, creating a leak-proof seal. This system is capable of coping with foot traffic, weather, and movement. 

EPDM Rubber Roofing

EPDM rubber is three things all in one: flexible, durable, and affordable. It will expand and contract with temperature fluctuations and will not crack, making it a wise choice for many low-slope roofs. Sealed-seam EPDM is installed for solid waterproofing. 

Commercial Roofing
Commercial Roofing

Ponding Water Drainage Solutions

Water on a flat roof is the #1 flat roof killer! We fix ponded water with tapered insulation, new scuppers, and improved drainage to move water away from your roof deck. We eliminate the symptom and fix the slope to preserve your membrane and structure. 

Commercial Roofing

Solar-Ready and Rooftop Equipment

Flat roofs can accommodate HVAC and solar panels. We construct solar-ready surfaces and meticulously seal around all penetrations and rooftop HVAC mounts. Our crews flash equipment so tight that added weight and traffic never cause a leak. 

Why Choose Christensen for Flat Roofs?

Decades of Low-Slope Expertise

We have been repairing and installing numerous flat roofs throughout North County since 1982. That depth provides our flat roof contractor San Diego with leak-free roofing.

Certified Systems and Warranties

Only membranes certified by their manufacturer and backed by a warranty are installed. Your flat roof is protected because no untested materials come into contact with it.

Transparency and Fair Pricing

We provide honest advice and clear quotes from our family-owned team; no charge until the roof is completed and you are satisfied with the finished roof.

Roof Replacement

Commercial Roofing
Commercial Roofing

Roof Repair

Commercial Roofing
Commercial Roofing

Our Flat Roof Process

Here is how our flat roof contractor San Diego team works:

     Inspection: We inspect your roof, check drainage, and identify any leaks or water pooling.

     Free Estimate: You receive a written quote that includes materials, drainage, and labour.

     Material Selection: We assist you in selecting your required TPO, EPDM, PVC, or torch-down.

     Installation: Installation by our crews will be in accordance with the company’s standards and will correct slope and drainage.

     Final Inspection and Warranty: We walk the roof with you and give you a warranty.

San Diego County Areas We Serve

We offer new roof installation San Diego County owners can rely on in these communities:

     San Diego County, CA

     San Marcos, CA

     Vista, CA

     Oceanside, CA

     Carlsbad, CA

     Poway, CA

     Rancho Bernardo, CA

     Fallbrook, CA

     Rancho Santa Fe, CA

     Escondido, CA

     Encinitas, CA

Group 4

“We are so happy with our new shingles and impressed with the team's quality and workmanship."

Lynda Jones

Group 4

“The service was very professional and I would happily recommend them! The roof looks great and the crew cleaned up afterwards."

Harley Baker

Group 4

“Honest and reliable service. Quick and friendly too. I would not hesitate to recommend this team for any job." 

Antony Sacks

Frequently Asked Questions

  • How much does flat roof replacement cost?

    The average cost of replacing a flat roof is $6,000 to $25,000 depending on the size, material, and drainage requirements. TPO and EPDM are mid-range, followed by higher-cost complex jobs. We provides a free estimate so you know your costs upfront.

  • How long does a flat roof last in San Diego?

    Here, a well-installed flat roof lasts for 15-30 years. With care, TPO and PVC can last up to twenty-five years; EPDM up to twenty-five years; and torch-down, up to thirty years. A low-slope roof in our climate will last for years when it is well-drained and properly maintained.

  • What is the best material for a flat roof?

    This will depend on your building and budget. TPO is a great energy saver, EPDM is durable and inexpensive, and torch-down is great for high-traffic decks. PVC or a coating is appropriate for ponding roofs. We assist you in selecting the correct one.

  • Why do flat roofs leak?

    Ponding water, failing seams, poor flashing work, and clogged drains are all causes of flat roof leaks. Water tends to pool and will find any weak area when there is not much slope. We correct the root cause, sometimes by repairing drainage and re-sealing seams, to keep your flat roof dry during all storms.

  • Can you put solar panels on a flat roof?

    Yes. Solar panels can be angled to capture the optimal sun exposure, making flat roofs great options for solar. All mounts and penetrations are sealed to prevent leaks, and we create solar-ready surfaces. We prepare your low-slope roof to support panels so you can safely add your own.

Snow-covered suburban house with a ladder and a small sign in front under a clear blue sky

End the Pooling, Patching, and Guesswork!

The problem with flat roofs is that they slowly leak, and then they leak. Ponding, split seams, and clogged drains don't fix themselves and only become more serious as each storm goes by. Most contractors will pursue the drip, and forget the drainage that created it in the first place. Correcting the slope and the membrane at the same time, which means that the water runs off the roof, and not on it. As a flat roof contractor San Diego property owners count on, we fix the cause, not just the symptom.

 

Stop chasing the same leak season after season. End it for good. Call (760) 741-1600 for your free flat roof estimate.

 

 (760) 741-1600 | christensenroofing@yahoo.com | Mon–Fri 9AM–5PM | License C39-417569