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Chamberlin-Washington has performed waterproofing, caulking, and building restoration work in the Washington, D.C. metropolitan area for over 100 years.

Residential Services

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Commercial Services

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Our Services

Waterproofing

We specialize in the prevention of water intrusion, including professional installation according to manufactures and product requirements keeping water out of buildings, homes, and parking garages.

Caulking

We specialize in caulking, both the process and material (also called sealant), to seal joints or seams in various structures and a wide variety of applications for the prevention of water intrusion.

Restoration and Repair

Specializing in masonry restoration, preservation, and conservation for decades, we are the experts of repairing, cleaning, and restoring.

We have over 115 years of service

See examples of our work

WATERPROOFING
Air Barrier

Air barriers, systems of materials designed and constructed to control airflow between a conditioned space and an unconditioned space, is the primary air enclosure boundary that separates indoor (conditioned) air and outdoor (unconditioned) air.

WATERPROOFING
Expansion Joint Systems & Covers

An expansion joint, or movement joint, is an assembly designed to safely absorb the heat-induced expansion and contraction of construction materials, to absorb vibration, to hold parts together, or to allow movement due to ground settlement or earthquakes.

WATERPROOFING
Restoration

Restoration pertains to the process of repairing, cleaning, restoring, etc. We have specialized in the masonry restoration, preservation, and conservation of buildings for many decades.

WATERPROOFING
Waterproofing

Waterproofing pertains to a wide variety of specialty applications for the prevention of water intrusion. Our waterproofing services always include professional installation according to manufacturer and product requirements. We keep water out of buildings, homes, and parking garages. Whether waterproofing a new or existing structure, regardless if the service is preventative or reactive, our waterproofing services keep the water out

WATERPROOFING
Caulkin

Caulking is both the process and material (also called sealant) to seal joints or seams in various structures and a wide variety of applications for the prevention of water intrusion.

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Request an Estimate

 

Whether it be waterproofing, caulking, restoration, foundation repair, air barriers or anything else, we promise you a fair estimate in a timely manner. Submit your request and a Chamberlin-Washington representative will be in touch within 48 hours to schedule an estimator to assess your project needs.

CONTACT US FOR AN ESTIMATE

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What Our Clients Say

There are no adequate words to thank you for all your kindness to me. Thank you from a very grateful heart.

Millie M., Homeowner

Your teams are great professionals! I am very impressed with every one of them! I think they have done a perfect job and I am delighted. Bravo to all.

Elisabeth P., Homeowner

You all are wonderful to work with - your patience and commitment is above and beyond.

Kerri Ann F., O'Neill Development Corporation

Whenever any type of waterproofing is needed Randy Alverson and his employees would be our only telephone call. We have been very pleased with the quality of their workmanship. They are punctual, knowledgeable, and professional and our clients agree.

Andy C., President of Stone Works, Inc.

Chamberlin-Washington always goes the extra mile to satisfy my clients wishes.

Jack S., Property Manager

Many thanks for your excellent work; it is much appreciated.

Steve B., Homeowner

Randy came to my house, surveyed the situation, and a few days later, CWI provided a comprehensive plan to resolve my problem. CWI’s work crew arrived as scheduled and they were GREAT!! They were polite, neat and very thorough and completed the work as scheduled. I recommend Chamberlin-Washington without any reservation.

P.F., Homeowner in Potomac, MD

Chamberlin-Washington always goes the extra mile to satisfy my clients wishes. Jack S., Property Manager Your teams are great professionals! I am very impressed with every one of them! I think they have done a perfect job and I am delighted. Bravo to all. Elisabeth P., Homeowner All of your work looks beautiful, thank you! Natalie M., Homeowner Whenever any type of waterproofing is needed Randy Alverson and his employees would be our only telephone call. We have been very pleased with the quality of their workmanship. They are punctual, knowledgeable, and professional and our clients agree.

Joseph H., Gilford Corporation

100% satisfied with their service!!

Ben Jackson

Thank you so much for the effort. It's very much appreciated. I wish some of our other subs were as diligent as you guys are. Plus let Randy know that the commission folks said that the waterproofing job done at Remote Inspection Facility was the best they have seen on the campus wide project. Keep up the good work!

Joseph H., Gilford Corporation

All of your work looks beautiful, thank you!

Natalie M., Homeowner