Welcome To Gates Brothers

Gates Brothers Damp Proofing Ltd is based in Portsmouth, Hampshire. We offer our professional Damp Proofing Services throughout the region of Hampshire including Portsmouth, Hayling Island, Cosham and the whole county of Hampshire. Probably the best service around. To make an appointment or to chat through your project... contact us today - CLICK HERE 

We began offering our damp proofing services in Portsmouth back in 1988 and called our selves ‘Gates Brothers’, therefore you can rely on us as the people of Portsmouth have for many years, because we really are a family company that is made up of brothers Mike and Alan Gates. We are proud members of Checkatrade, for your peace of mind.

Damp Proofing

Rising damp, Penetrating damp, Mould Control

Structural Waterproofing

Cellar inspections, Damp Surveys


Woodworm treatment

Dry Rot Treatment Services


Wall Tie Replacement

Crack stitching and repair



Gates Brothers Damp Proofing offers a professional and fully experienced service in property preservation and renovation. We have built up an excellent reputation with all our customers which we are very proud of.

Don’t let the damp or dry rot ruin the comfort of your home. By treating and repairing the problem quickly we can offer a cost effective solution, and add value to you home or business premises.

We can supply ‘Damp Proofing Survey reports’ upon request

@ £100.00


Gates Brothers Damp Proofing Ltd has been very successful in helping local Portsmouth / Southsea  customers for 30 years with damp proofing and water proofing issues.

In May 2019 we expanded and changed to a limited company status – so our new name is GATES BROTHERS DAMP PROOFING LTD, our professional quality and customer service remains as good as always!

We are more than happy to come and take a look at the problem area, and give you our professional opinion on the best and most cost effective solution.

Contact us on 02392 344745 or 07342 899074

Damp Proofing for the Portmouth area!

Damp Proofing
Don’t just take our word for it on how good we are – Here are some customer reviews


Tanking of small room in basement.

“Can highly recommend this company. Really professional attitude, courtesy and work standard. They carried out work over agreed timeframe and for agreed price. Really happy with every aspect of the works.”


Damp proof course to living room.

“Very reliable trustworthy tradesman. Would highly recommend to friends and family. Kept works clean and tidy and communicated well at all times.”


Damp proof in living area

“Really pleased and happy with the work carried out. Would highly recommend exspecially for the price and they got the work completed in the time the gave me! Very happy customer.”

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