SIP Panel Extension Efficiency Information

Our extensions utilise the Kingspan TEK® Building System for the walls, which has environmental sustainability at its core. All of the components for a typical extension, e.g. panels and ancillaries, come from one source. Therefore there are fewer deliveries, less transport congestion, noise and traffic pollution, which reduces a project’s impact on the environment. In addition, a project will create minimal site waste, as kits are designed, cut and palletised in a quality controlled, factory environment.

The insulation layer is not interrupted by repeating stud work, so there is less repeating thermal bridging, yielding better thermal performance. The SIP panels are certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) as `Very Good’. The insulation core of the panels is manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Roof Efficiency

For roofs we use the Guardian Warm Roof system, which is fully tested and approved to all thermal and structural standards. This high performance insulated roof system comprises of a pre-engineered lightweight frame, two layers of rigid insulation board, internal insulated plasterboard, exterior grade plywood and a vapour membrane. Altogether this creates a thermally efficient living space; keeping the warm air out in the summer and preventing the heat from escaping in the winter thus saving the amount of heat energy required to keep the room at an ambient temperature.

Complete Construction Efficiency

Finished constructions produce a superior U-value of just 0.16 W/m2.K with a total wall thickness of 275.5 mm. To achieve an equivalent U-value using traditional methods of construction the wall would have to be 453 mm thick. Thermographic imagery on completed roofs has demonstrated 100% thermal reliability and continuous insulation, with:

• No cold bridging

• No condensation risk

• No interstitial moisture risk

Free Extension Quote

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BiFold Doors

Skylights

Aluminium Windows

LED Roof Spot Lights

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Guardian™ Roof Key Information

Full Building Control For your peace of mind

Beautiful FinishesTo compliment your home

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Energy EfficientSaving you money

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Fast InstallationFor your convenience

Reviews

4.9 Over 102 Reviews

Write a Review

Hi Dylan,
Installation was fast and your people were professional and friendly.
The solar remote did not work in the beginning but sorted itself out. Really happy with our new window now.
Thanks again.

The company provided a very competitive quote for our new Guardian roof. The works were started on the agreed date and completed on time to a high standard. We received the Guarantee and the all important Building Regulations Certificate promptly. It was refreshing to deal with a company who did exactly what they said they would do. Excellent customer service!

We had a large velux window fitted into our bedroom and it is amazing! It makes the room so much lighter and brings sunshine into a once dark attic room. The 2 fitters were brilliant and completed the work to a high standard and all the mess was tidied up like they were never there. The work didn't take too long either and they turned up on time
Communication with Dylan was excellent from start to finish, the whole experience was exactly as I would expect it.
Now we can't wait to get the rest of the room finished so we can move back into it. We would definitely recommend.

Velux window installed by NECS - easy communication, polite and efficient workers. We’re very pleased with the job - thank you.

Experience was good from end-to-end. They managed to squeeze the job in for us promptly as we needed it completing for other to could commence.

The product was perfect for our requirements and so effective that it appears that we have left a light on in the room.
The Installation went well with two Engineers working very efficiently especially with having to deal with issues of the roof and when completed they ensured everything was left pristine and clean, whilst ensuring that we were completely satisfied with the finished product.
Could not praise them more.

Great job from start to finish. Advised on size of window, installation efficient and final finish fantastic. Transferred a dark bathroom. Would recommend to anyone looking for a velux window installed.

Excellent,efficient and very tidy service while fitting my new velux window.I would recommend using the services.

I recently contacted Dylan and team with regards to the installation of a velux window. I couldn't be happier with the process and the results! Dylan came out within a day of my query to take the necessary measurements, talked me through the various options and gave me a quote. So simple and easy to deal with! His friendly and polite team came out within a couple of days and the job was done and dusted within a day. Everything was left clean and tidy - they even hoovered my entire staircase leaving it much nicer than when they'd arrived! A ten out of ten service that I'd recommend to anyone!

I am very satisfied with the overall experience with NECS. From the very beginning, communication was consistently clear and prompt, with all my queries addressed thoroughly.

I'm extremely pleased with the quality and the efficiency with which the project was completed. The installation process was smooth, and the end result aligns perfectly with my expectations.

What a wonderful experience.

I ordered 2 solar Velux windows through Velux themselves online. Very quick and easy. Velux then referred to their approved installer who were NEC windows.

The team arrived on time and had kept me up to date with texts. They were outstanding, such a wonderful group of men who were very polite and hard working. They worked tirelessly and cleaned up thoroughly when they had done. I felt the team really cared about their trade and would definitely return to NEC windows in a heartbeat.

It’s been a truly wonderful experience from start to end and cannot thank you enough.

Thank you so so much.

DeeDee

Excellent service from Dylan and installation boys where superb making sure everything was left clean & tidy when my two large velux windows where replaced. Highly recommend Guardian team! Thank you!

We’re so pleased with the amount of natural sunlight that we now have on our landing area, since having the sun tunnel fitted. The fitters worked extremely tidily and the customer service overall was fantastic.

This is the second time I have used NECS Ltd and once again, they didn’t disappoint. From first contact to completion, everyone was superb. The roof was completed in a timely fashion, to an extremely high standard and everything was left clean and tidy. An excellent job!

From my very first phone call, right through to completion, Dylan and team were utterly fantastic. Excellent communications, superb and thorough project discussion, speedy quotation, quick ordering timescales, faultless installation by a really fab team and wonderful post completion customer services. Don't look any further than Dylan and team for your project - you won't be disappointed. We couldn't be happier.

They were excellent!!! When we reached out initially, they responded rapidly, answered all my questions, and helped us get our window fixed quickly! If any delays cropped up, we were notified quickly and got timelines so there was no confusion about what was happening and when. Would absolutely go with them again!

I have just had a new lamplight fitted in the roof. The old one was leaking and rotten. Dylan from NECS came out to survey the job and was very professional.
The job was done in the time frame even though they had to put extra scaffolding up. They even tidied up after the job. Love the new roof light excellent job. Would recommend them.

The whole team from initial consultation to completion of the work were great. Two replacement Velux roof windows installed in just a few hours. The lads were friendly, cheerful, professional, efficient, neat workers who left the place clean and tidy. They kindly returned yesterday to replace a large ridge tile on my garage roof after recent storm damage - job done in around 10 minutes ! I would recommend this company to anyone. They offer fair pricing for their excellent quality of work and product and are a pleasure to deal with.