Guide
What to check before you sign
The difference between a good roof and a bad one is mostly the crew, not the material. Both quotes list the same brand of shingle.
Or call (909) 760-1213Get it looked at
Three questions, and up to three Diamond Bar contractors. Free either way.
Your request is in.
We are matching it now against roofing contractors working in Diamond Bar and the surrounding area.
- Today, usually within the hour. The first contractor calls or texts the number you gave us. ASAP requests go out first.
- Up to three of them, no more. We cap it at three so you can compare without your phone melting.
- They come and look. Estimates are given after somebody has been on the roof, not over the phone.
- You decide, or you do not. There is nothing to cancel and nothing to pay us.
If you do not hear anything today, check your voicemail and spam folder — contractors often call from a mobile number.
Compare scope, not totals
Lay the quotes side by side line by line. Underlayment type, ice-and-water coverage, drip edge, valley treatment, ventilation, flashing replacement, decking allowance and warranty. Large gaps in the total are almost always gaps in the scope.
Ask for current certificates of insurance
You want general liability and workers compensation, both current, and ideally sent directly from the insurer rather than as a photocopy. If an uninsured worker is hurt on your roof, the exposure can land on your homeowner policy.
Get everything in writing, including the unknowns
Anything agreed verbally will be remembered differently on day two. In particular, pin down the decking rate, the start date and the clean-up before you sign.
Be careful with the deposit
Ten to thirty per cent is normal, often to order material. Full payment before work starts is not, and in several states it is not even legal. Hold the final payment until you have walked the job.
Check the licence yourself
A licence number on a business card is not a licence. Look it up, confirm the name on the licence matches the name on the contract, and check the status is active today.
Prefer somebody you could drive to
Ask where their yard is. Companies that follow storms across state lines do competent work and then vanish, which is fine right up until something needs putting right.
In short
Do the boring checks. They are the entire difference between a roof that is somebody else's problem for ten years and one that is yours.
Related questions
What time of year is best to re-roof in Diamond Bar?
Here, the long dry run from May to October is the easy window. November through March is when the phone rings hardest, which means less flexibility on dates and less room on price.
Do you cover the whole Los Angeles County area?
Yes. The contractors we match on cover Diamond Bar and the surrounding towns, so if you are just outside the city limits it still works.
Do you handle commercial buildings?
Yes. Commercial requests go to contractors who do low-slope and flat systems rather than to residential crews. Say so on the property question and it routes correctly.
Ready for a real number?
It is free, and nothing obliges you to hire anyone.