What We Do

Residential Services

We have an A+ rating with the BBB and are licensed, bonded, and insured.

Window Wells & Covers

Chamberlin-Washington has performed residential work for over 115 years and we strive to provide simply the best services to our customers which means we focus on the details – like cleaning up, respecting our clients’ space, while being honest and efficient. We tailor each project to your specific need. We are known for our superior customer service, our professionalism, and pride in workmanship.

  • Balcony Repairs
  • Basement Leak Repair
  • Brick, Stone Pointing & Repair
  • Caulking / Joint Sealants
  • Chimney Caps
  • Chimney Repairs & Sealers
  • Concrete
  • Concrete Driveways / Walkways
  • Custom Patio / Planters
  • Custom Retain Walls
  • Drainage Systems
  • Epoxy & Urethane Injections
  • Floor & Wall Coatings
  • Hardscaping
  • Leak Detection
  • Patching & Parging of Walls
  • Power Cleaning
  • Rain Barrel Installation
  • Rain Gardens
  • Sump Pump Systems
  • Wall Coatings
  • Waterproofing
  • Window Wells & Covers (Custom‑Made)

Request an Estimate Now

Let us know how we can help you with your project. 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.

Get in Touch

Gallery

See Our Work

Exterior Hardscaping

Waterproofing

Caulking

Masonry

Testimonials

"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

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

Millie M., 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

"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

"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