photo of restored c1750 farmhouse
photo of restored c1750 farmhouse
c1750 Novotny House restored by CD Kaller

Premier Roofer in the Delaware Valley

CD Kaller is the premier roofing contractor in the Delaware Valley. Located in Willow Grove, Montgomery County, we have been servicing our surrounding communities in the entire Delaware Valley since 1939. Registered in both Pennsylvania and New Jersey and fully insured we specialize in all kinds of roofing from asphalt shingles to cedar shake - inspection, repair projects, storm damage, roof replacement or new construction.

See why CD Kaller is the right contractor for you.


Damaged shingles or other materials can allow moisture to build up on the sub-roof which can soon lead to a leak, so its important to take care of these issues asap. Inspections can be made at any time when you think you see symptoms, but especially if your roof is getting older. CD Kaller can inspect your roof and give you a written report and estimate on our recommendations.


Whether you just notice it, we find it during an inspection, or your roof is damaged by a weather event - CD Kaller can repair damage to your roof, sub-roof and gutters. We have certifications by all the major suppliers to ensure you are getting skilled craftspeople and a job well-done.

Storm Damage

Roofs can be seriously damage due to weather events: wind tearing off shingles, hail damaging shingles, trees breaking through your roof, or heavy rain finally breaking through existing damage to seriously mess up your interior. When damage does occur, CD Kaller to immediately stabilize the area and prevent further damage. We can give you a detailed written description of the damage and an estimate to repair the damage and will work with your insurance company or public adjuster to get the job finished quickly and correctly. See more about Storm Damage.

Replacement/New Roofs

Sometimes, either from storm damage or old age, your roof will need to be replaced. CD Kaller can work you to determine the best type of roof and materials to use to not only make your home look great but also protect it for many years to come. Certifications from major suppliers also allow us to offer the best and longest warranties on roof replacements.

We Service and Install All Types of Roofs!


Why Choose CD Kaller?