Beautiful uPVC Conservatories MADE-to-measure 

uPVC is more often the desired material chosen when constructing your Conservatory.

Our uPVC conservatories are constructed in a vast range of colours & profile finishes.

Due to our Modern systems allowing  you to recreate a traditional Timber Conservatory appearance and feel but with superior insulation, weather proof & low maintenance properties that uPVC offers over wood, plus it will not warp or swell like a wood.

Every Firmseal uPVC conservatory is bespoke and designed to suit your property and your taste & within your ideal budget.

We have a range of enhancements and upgrades to help you customise your new favourite room.

Customise your living space from the inside to the outside.

View enhancements
AVAILABLE TO VIEW AT OUR SHOWROOM Download Brochure Extended living brochure

The Firmseal process

We pride ourselves on offering the very best experience for our customers throughout every stage of the process.
Known fondly as the “Firmseal experience".

From quote to installation, we make it easy for you!

"We had dealt with Firmseal in the past. Came over and looked at showroom, was impressed, staff so helpful, everything went smoothly from start to finish. So nice to get to speak to a person at the end of the phone. Thank you to everyone."

Mrs M – Windows, Yeovil








What our customers say

Don’t just take our word for it. Hear what our customers have to say!

Excellent product & better value for money than competitor brands. Customer service has also been very impressive. We love our new windows.

Mr & Mrs T

Alitherm, Yeovil

Completely satisfied, you came recommended by my sister who has had various work done by yourselves.

Mrs C

Back Door, Yeovil