Northern California
Commercial Roof Inspection and Maintenance in San Mateo, CA
San Mateo sits halfway down the Peninsula between San Francisco and San Jose, and its commercial roofs cover office buildings near the bay, retail at Hillsdale and Bridgepointe and older storefronts downtown.
What kinds of commercial buildings are in San Mateo?
San Mateo's commercial roofs fall into 3 main groups: office and research buildings on Mariners Island and at Bay Meadows, regional retail at Hillsdale and Bridgepointe, and older commercial buildings in downtown San Mateo.
Bay Meadows, a former racetrack, was rebuilt over the past 15 years with office and mixed-use buildings, while Mariners Island holds older low-rise offices from the 1980s. Downtown keeps two and three story storefront buildings with small roofs behind parapets.
- Mariners Island: low-rise office buildings and hotels beside the bay
- Bay Meadows: newer office and mixed-use buildings on the former racetrack site
- Hillsdale and Bridgepointe: regional and big box retail along State Route 92 and US 101
- Downtown: older storefront and office buildings near the Caltrain station
| Building type | Common roof system | Typical age | What San Mateo does to it |
|---|---|---|---|
| Bayside office buildings | Modified bitumen or TPO | 20 to 40 years old | Wind and salt air near the shoreline |
| Newer office and mixed-use | TPO or PVC | 1 to 15 years old | Roof decks and rooftop amenity areas |
| Downtown storefronts | Built-up roof behind parapets | 40 to 80 years old | Parapet and scupper leaks |
What does the San Mateo climate do to a flat roof?
San Mateo gives a flat roof about 20 inches of rain a year, cool marine air in summer and steady afternoon wind off the bay.
Roofs close to the shoreline pick up salt and stay damp longer in the morning, while downtown buildings sit in a slightly warmer, calmer pocket. Winter storms can drop several inches of rain in a few days.
How often should commercial roofs in San Mateo be inspected?
A San Mateo commercial roof should be inspected at least 1 time a year with a scan, and 2 times a year for older bayside offices and downtown buildings.
Fall is the best time for the main visit, ahead of winter storms. Our commercial roof inspection page explains what each visit covers.
What does a maintenance program cost in San Mateo?
A maintenance program for a 40,000 square foot office building in San Mateo costs $4,800 to $6,000 a year on our Monitor program, priced at $0.12 to $0.15 per square foot with a $1,500 minimum.
Monitor fits many San Mateo office roofs because steady condition and an annual scan keep costs low while tracking the Roof Condition Score year to year. Compare all 3 tiers for San Mateo on the maintenance programs and pricing page.
San Mateo figures use our published rates: Monitor $0.12 to $0.15 per square foot a year with a $1,500 annual minimum, Protect $0.22 to $0.25 per square foot a year with a $2,500 annual minimum, Manage $0.40 to $0.45 per square foot a year with a $4,500 annual minimum.
How soon can you scan a roof in San Mateo?
We can scan a roof in San Mateo as soon as roof access is confirmed after your request, and a 40,000 square foot office building takes under an hour at roughly 50,000 square feet an hour, with the PE-stamped report delivered within 48 hours.
San Mateo office buildings usually allow roof access through a mechanical room, so building engineers can open the hatch for a weekday scan. Send the San Mateo address through our roof scan request form, or see coverage across Northern California.
FAQs
Do bayside San Mateo roofs need extra attention?
Bayside San Mateo roofs need extra attention at metal edges, fasteners and drains, because salt air and wind off the water wear those details faster than inland.
Can you scan a San Mateo roof with a rooftop deck?
We scan the open membrane around a San Mateo rooftop deck and mark the deck area on the report, so you know which sections were covered.
Which parts of San Mateo do you cover?
We cover every flat and low-slope commercial roof in San Mateo, including Mariners Island, Bay Meadows, Hillsdale and Bridgepointe and Downtown.
How long does a roof scan take on a office building in San Mateo?
A roof scan on a 40,000 square foot office building in San Mateo takes under an hour, because our robotic scan covers roughly 50,000 square feet an hour, and the PE-stamped report follows within 48 hours.
What is the most common commercial roof system in San Mateo?
Modified bitumen or TPO is the most common roof on San Mateo's bayside office buildings stock, and those roofs are typically 20 to 40 years old.
Who issues reroof permits in San Mateo?
Reroof permits in San Mateo are issued by the City of San Mateo building department. San Mateo reroof permits come from the City of San Mateo building division, and Title 24 cool roof rules can apply when a large low-slope roof is replaced.
Which program fits most San Mateo roofs?
Monitor fits many San Mateo office roofs because steady condition and an annual scan keep costs low while tracking the Roof Condition Score year to year.
What does a Monitor program cost for a office building in San Mateo?
A 40,000 square foot office building in San Mateo costs $4,800 to $6,000 a year on Monitor, at $0.12 to $0.15 per square foot a year with a $1,500 annual minimum.
Do you need to go inside the building to scan a roof in San Mateo?
No. The scan runs on the roof surface in San Mateo, so offices, plants and tenants below carry on as normal.
How soon after the scan is the San Mateo report delivered?
San Mateo owners receive the PE-stamped report within 48 hours of the scan, with the Moisture Map, Deficiency Map, Roof Condition Score and Estimated Remaining Service Life.
Which roof systems do you scan in San Mateo?
In San Mateo we scan TPO, PVC, EPDM, modified bitumen, built-up and spray foam roofs on flat and low-slope commercial buildings.
How do I book a roof scan in San Mateo?
Send the San Mateo address through the roof scan request form or call (310) 647-7192.
Schedule a non-destructive roof scan in San Mateo.
Trusted since 1983 on over 20,000 commercial roofs. California License 435836.