Testimonials

I am delighted to share my admiration of the expertise, care and work ethic of Gary Rowan of Heritage Window Consultancy, whom I recently engaged for my almost 200-year-old property’s original sash windows. He is passionate about his specialism. I recommend him without hesitation.

Dr Jill - Grade II Listed Property Owner - Bristol

We couldn't be happier with the work and support we have received from Gary. Not only did it allow us an unbiased survey of our windows without any persuasion to go in a certain direction of work, but also the continued support throughout the listed buildings consent process. It has been the best money we have spent on the property renovation so far, and truly believe it has saved us thousands. 

Rosie and Steve - Grade II  Listed Property Owners - Wiltshire

We feel incredibly lucky to have found Gary at a very stressful and emotional time. Just after buying our Grade II listed home, we discovered - despite a Level 3 survey - that our oriel window, including its base and roof, needed replacing. It was overwhelming.

Gary has truly been our lifesaver. From the first contact, he has been responsive, reassuring, and deeply professional. He positioned himself as a partner from the outset - guiding us through the assessment, helping us review quotes, and now supporting us through supplier selection. His service clearly covers the full journey: from initial assessment through to manufacturing, coordinating tradespeople, and navigating planning consent.

He listens to every worry, follows up quickly, and always responds with empathy and clarity. Gary isn’t just a consultant - he’s a project manager, a coordinator, and a steady hand in a stressful process.

We honestly don’t know how we would have managed without him. He’s a rare find, and we’re holding on tight!

Marie  - Grade II Listed Property Owner - Bristol

Gary is a true professional and was a pleasure to deal with. He always kept in regular contact even if it was just a quick update. What a refreshing change these days!

Windows are a real passion of his and Gary certainly knows his stuff! His detailed report on the condition of my sash windows reassured me that renovation was an option for me and  Gary sourced estimates on my behalf from his trusted contacts. 

I am delighted to have found Gary and I would have no hesitation in recommending him

Liz - Grade II Listed Property Owner - Somerset

We recently contacted Gary at Heritage Window Consultancy regarding our grade 2 listed Georgian property, and we couldn’t be happier with the service. 

He responded to our enquiry promptly and was extremely knowledgeable about period windows, the challenges they can present and the refurbishment options. Gary was personable, professional, and thorough in his assessment, and he produced a clear, detailed report in no time. 

His expertise and approachable manner made the whole process easy and reassuring. We would certainly recommend Gary to anyone needing specialist advice on heritage windows.

Beth -  Grade II Listed Property Owner - South Wales

We recently had an offer accepted on a property and, when reviewing the paperwork from the seller, noticed that new windows and doors had been installed but no certificates or warranties were provided.

As first-time buyers, we were keen for reassurance that there were no issues with the installation. That’s when we found Gary Rowan at Heritage Window Consultancy.

Despite the house not being listed, Gary was more than happy to help, something we really appreciated at such a stressful time. He went above and beyond throughout the whole process.

The quote was provided quickly, the work was carried out promptly, and Gary kept us informed every step of the way, including updates on the survey and timings for the report. He also gave detailed, helpful responses to every question we had.

We would happily recommend Gary and Heritage Window Consultancy to anyone needing window services.

Alice - First Time Buyer - Hertfordshire

I thoroughly enjoyed working with Gary during my time in the heritage sector. His service was consistently exceptional — not only in supporting me as a client, but also in the way he engaged directly with my own clients. His passion and in-depth knowledge of heritage properties, particularly in relation to windows and traditional detailing, is evident in all aspects of his work.

Heritage Window Consultant - Southern UK