Marathon replaced all the original sash windows in our house with similar uPVC ones. We are delighted with the result and the service we have received. The saleswoman who first called, the surveyor who measured up and the men who installed the windows were all polite and helpful - and above all professional. We are so pleased we selected this company.

Excellent workmanship and approachable members/owners... Very commendable. I particularly liked the fact that there was no ‘hard selling’ like some companies in the industry but yet, it was all comprehensive and a great service.

Have used Marathon before but this is the first big job they have done for us. They have just replaced all windows and doors in our rather dated new house, which involved knocking out part of the rear wall in the back sitting room to accommodate the new patio doors. We are delighted with the stand out service we have received from start to finish and the price was very competitive too. As always Tony has been helpful, honest & very accommodating to our needs and Jane was great in helping us choose a colour for the front door which needed to be in keeping with the style of the property! Thanks to the girls in the office too, who were efficient in booking appointments. Now, the fitters, well what can we say? Top notch, no other words for it! The work has been completed to a very high standard, with careful attention to detail and quality finishing. Adam & Billy were friendly, punctual, reliable, extremely hard working and incredibly helpful. Nothing was too much trouble. They always left everything clean and tidy at the end of the day and you would barely have known they had been there. It was an absolute pleasure having them in the house and we missed them when they had gone. Marathon Windows have done a wonderful job for us and we couldn't be happier. We would use them again and again and have no hesitation whatsoever in recommending their services to others.

After a long painful search and wasting our time talking to the so called big double glazing companies!!! we came across Marathon Windows and from the first survey visit by Jane Harper we knew it was the one we going to choose, her visit was followed by Toni who took the measurements and with his extensive knowledge gave us his valuable advise. From then communications were excellent. On the agreed day of installation two men crew arrived (Les and Charles) joined later by Gareth with a big refreshing assuring smile they fitted the first 3 Windows and over the next 5 days completed all the fittings (11 Windows, 2 Doors and French Door to the Patio. During their work they were very professional, polite, helpful respectful and joy to be around as they have lovely sense of humour they always cleaned after work and left the place shinning. All the installations were completed on time. When I think back we consider ourselves lucky that we didn't fall for the big companies falls gimmick and we chose Marathon Windows. Big thank you to all who worked to transform our house. I would highly recommend this company.

Marathon were appointed by our Management Co to replace 75% of windows within the block including communal windows following a robust selection process. They stood out in terms of professionalism, price, speed of response, recommendations & an excellent product. My 4 windows in a first floor flat completed within a day and a half with barely noticeable damage to my property. It was left clean and tidy and new windows make a huge difference to the aesthetics of the building and my own property. Overall very pleased with service received from Marathon & happily recommend to anyone.

Marathon Windows were great. The installer did an excellent job; fitting the two new windows quickly and with a minimum of mess. The price was fair and I'd recommend them to any friends that wanted a similar job doing.