We specialise in replacement and refurbishment of traditional timber sash and casement windows and doors across South East and East London.


We are a small business with professional, friendly and personal way of working.  Although a small business, Sash Window Doctor Ltd understands the importance of the well run company and has the necessary assurances in place that are as important for us as a business as for our customers.


Over 30 years of family tradition and expertise guarantees a high quality service.

guaranteed & certified 

We are CertAss registered business. What does this mean? CertAss is government approved certification body, which guarantees compliance with local building regulations and guarantees by law required insurance backed guarantee.  


All Certass registered contractors are vetted to ensure they are qualified to carry out installation work in accordance with the current building regulations and, once an installation is complete, Certass provides you with the Building Regulation Compliance Certificate for the work carried out, at no extra cost to customer.

We take due care of our potential and existing customers as it is important to us to be recognised as professional, honest business with excellent customer care.

our services

Timber Sash & Casement Windows
titmber sash windows
External Hardwood Doors
external hardwood doors
Window Refurbishement
window refurbishment

We work closely with conservation area officers and  architects to help maintain original style of the windows in order to preserve unique original style of the property.    


We provide complimentary (free of charge) planning application assistance for conservation / listed building applications. 

Conservation Approved  Windows 

what our customers say

Nick, Ermine Road, SE13

"Fantastic service and high quality product. Very pleased overall. Delighted with our new windows and doors. Peter was great and the team worked promptly and did a great job clearing up too. Excellent stuff."

Chenda, Brand Street, SE10

"Fantastic team - totally reliable and going the extra mile. I would thoroughly recommend them. Their work is excellent."

Bridget, Kenilworth Road, E3

"Very professional, tidy and great attention to detail. Trustworthy"


Sash Window Doctor Ltd. 

Berkeley Crescent, Dartford, DA1 1NH



Tel: 01322311739 evenings / 07855858184 anytime

alternatively send us your details here and we'll contact you at earliest convenience 

trusted trader
certified sash window installations
QANW Insurance Back Guarantee
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