Alaskan Sliding Sash Windows

About Alaskan Sash Windows

Our family run company is based in Sutton and serves the community across Fulham, Southfields, Putney, Wandsworth, Balham, Clapham, Wimbledon, Morden and South West London. We pride ourselves on being your local specialist, a company that you can rely upon for outstanding and bespoke uPVC sash windows.

Start My Quote Find Out More

Family Orientated

We pride ourselves on our values and customer service. Being a family run company, we have the advantage of a close knit team who are dedicated to our business. We strive for the highest levels of customer service, treating each and every client as an individual with unique requirements. We never rush you in making decisions or treat you like you are just the next in line. We are always available to answer your questions and to guide you in the options available to you. Our director personally attends every installation we undertake to ensure our customers are satisfied with our service and our sash windows.

Casement Windows

Local Based, Locally Loved

We only offer our double glazed sash windows to homeowners in London, including Croydon, Epsom, Kingston, Reigate, Sutton and Wimbledon. This is because we feel we can offer a better service by remaining local to our community. It means that our installation times are faster, and we can come to you with no extra costs involved. Our customers are delighted with our work, and as you can see from our testimonials, they are happy to share their experiences.

Contact Us

Exceptional Customer Service

From your very first contact until your windows have been installed and signed off, we will provide exceptional customer service. Our friendly and helpful team can be contacted with any queries you may have and will patiently guide you through all of the options available to you. Once your uPVC sash windows are ready, our professional and discreet installation team will come to your home, treating it with the utmost care, and install your windows ensuring the highest standards are met. Should you have any queries after installation, we will be happy to help, as our customer service is ongoing.

Quality, not Quantity

Our aim is to provide the very pinnacle of quality when it comes to our sash windows. We are not a company that gives you a hard sell, trying to coerce you into buying more than you need. We are a company that thrives on incredible standards, from manufacture to installation, ensuring you receive uPVC sash windows that will provide you with years of enjoyment and performance. We offer a 10-year manufacturer’s guarantee on all our sash windows so that you can be confident on their outstanding quality.

fensa sash windows sutton london



Members of FENSA: ensuring building regulations compliance on every installation. When having windows and doors replaced homeowners must comply with current thermal performance standards and ensure that they get a certificate of compliance from FENSA or from Local Authority Building Control. FENSA also enables companies that install replacement windows and doors to comply with these industry regulations.

trust mark sash windows sutton london



Local, trustworthy and reliable tradesmen, operating to Government endorsed standards. TrustMark is a not for profit organisation, licensed by Government and supported by consumer protection groups.

Home Improvement Protection Logo

Home Improvement Protection

HIP are a highly accredited and prestigious insurer for deposits and guarantees in throughout the home improvement industry. As a proud trade member, Alaskan Windows offer only the very best service for protecting your money in unforeseen circumstances.

kitemark bsi sash windows sutton london

BSI certified


The Kitemark® is the world’s premier symbol of trust, integrity and quality. Manufacturers having this associated with their product or service will reassure customers and specifiers alike that they have satisfied the most rigorous of quality processes. We only supply and install BSI certified products.

Sash Windows Prices

Despite our uPVC sash windows being high-end products, we still offer competitive prices that you can be satisfied with. Without any obligation, you can obtain a free, tailored quote from our online quote calculator It’s incredibly efficient, taking just a few moments of your time. Just enter your design requirements, and our clever calculator will create a unique price.

This will allow you to pick the dimensions of your sash window, along with the internal and external colours of the frame and any decorative glass options that you require.

If you prefer, our customer service team are happy to help you, so contact us and we will guide you through your options.


What Locks Do You Use to Secure Sash Windows?

Our sash windows are fitted with key-lockable twist locks as standard. They are key lockable for insurance purposes and provide enhanced security.

Are Your Sash Windows Available with Flags, Bays and Arches?

We can offer a range of bespoke styles including true arch, gothic arch and swept head sash windows. We also provide multi-section flagged windows for larger openings, and 90° angled bays.

Do You Offer Sash Windows with Ogee Architrave?

Yes, our sash windows can be fitted with Ogee Architrave which helps to blend the window to the walls surrounding it seamlessly. The Ogee architrave will further enhance the period features of a traditional sash window.

Do You Offer Sash Box Removal?

No, we do not offer sash box removal.

Do you offer a Guarantee with Sash Windows?

Our sliding sash windows come with a 10-year manufacturers guarantee. This gives you peace of mind that your new windows will perform year after year without compromise.