WarmerBeam Orangery Conservatory Roofs
Discover the excellence of WarmerBeam Orangery Systems with Greenoaks
Conservatories are just as popular today as they ever were, yet they often go unused for much of the year. In the summer, the combination of hot sun and glass can make sitting in your conservatory unbearable, while in winter it’s the opposite problem, nobody wants to sit in a cold, draughty space. We provide the WarmerBeam Flat Roof I Beam System, a tried, tested and certified solution that transforms your conservatory into a comfortable room you can enjoy all year round.
The WarmerBeam system achieves an exceptional U-value of 0.13 W/m²K as standard, outperforming most other systems and traditional orangery constructions. Its multi-layered insulation combines 125mm honeycomb multifoil insulation fitted between the I-beams with 82.5mm insulated plasterboard, delivering outstanding thermal performance that keeps your room cool in summer and warm in winter.
Built from a lightweight timber I-beam framework using C24 structural timber with a 10mm moisture-resistant particle board web, the WarmerBeam system is strong enough to span up to 7 metres without additional support, yet light enough to be retrofitted onto existing frames.
Beautiful Conservatory Roof Transformations
Whether you are considering a new build extension, conservatory or a conservatory roof replacement, we provide expert orangery conservatory roof installation solutions throughout Essex and the surrounding areas.





Need inspiration? Take a look at our gallery of previous conservatory roof projects. Whether you are looking to convert your conservatory or orangery or considering a new build conservatory, we would be delighted to help.
Bring Natural Light and Aesthetic Appeal to Your Home
Alongside the WarmerBeam system, we offer a choice of glazing solutions to flood your room with natural light. The Sheerline S1 Roof Lantern features slim, contemporary styling with Thermlock® multi-chamber technology, making it the UK’s most secure aluminium roof lantern. Prefer a cleaner look? Our frameless flat rooflights are available in double- or triple-glazed options, with solar-control and low-emissivity glass as standard.
You also have full control over the finishing details. Choose from a range of soffit, fascia and gutter colours, including our stylish double Ogee gutter system, to ensure your new roof blends perfectly with your home.
Here are just some of the reasons to choose a
WarmerBeam Orangery Roof:
LABC Certified & Tested
Independently tested and certified, surpassing all Building Regulation requirements in England and Wales.
0.13 U-Value as Standard
Exceptional thermal performance that outperforms most other systems and traditional orangery constructions.
Comfort All Year Round
Retains heat during the winter and keeps your room cool throughout the summer, allowing for true comfort.
Build Your Dream Conservatory with Greenoaks
Add a stunning focal point to your new roof with the Sheerline S1 Aluminium Roof Lantern. Featuring slim, contemporary styling and Thermlock® multi-chamber technology, it’s available in Anthracite Grey or Black to complement any home.
The S1 Roof Lantern accommodates 28mm glazing, with options including solar control glass to block UV light and acoustic dampening glass for added comfort. Double and triple glazed flat rooflight options are also available.
Choose from a range of soffit and fascia colours to complement your home’s exterior. All systems include our stylish double Ogee gutter system as standard, finished to match your chosen colour scheme.
Every WarmerBeam system is covered with a durable EPDM rubber membrane, complete with all trims and cappings supplied as standard. With a life expectancy of up to 50 years and little to no maintenance required, it’s built to last.
Included within your bespoke package:
- 25-year product guarantee
- Lightweight timber I-beam framework achieving a U-Value of 0.13 W/m²K as standard
- 125mm multifoil honeycomb insulation fitted between I-beams for maximum thermal efficiency
- 82.5mm insulated plasterboard for a smooth internal finish, ready to be skimmed and decorated
- EPDM rubber membrane with all trims and cappings supplied as standard
- Structural 150mm Glulam eaves beam cut to size
- 15mm OSB outer skin boards cut to size
- Firring strips and 25mm x 50mm battens for adequate pitch and cross-flow ventilation
- All fixings, brackets, clips and joist hangers included
- Choice of soffit, fascia and gutter colours including stylish double Ogee guttering
- Personalised assembly drawings included as standard
- LABC certified and independently tested
Frequently Asked
Questions
Many questions may arise when you are considering having one of our WarmerBeam Roofs installed.
This FAQ section answers some of the most common questions we come across. If what you had in mind is not mentioned here, please don’t hesitate to contact us and we will be happy to answer any question you may have.
How long will my WarmerBeam Roof Last?
The WarmerBeam system comes with a 25-year product guarantee, with engineered products designed to last a lifetime. The EPDM rubber membrane has a life expectancy of up to 50 years with little to no maintenance required.
Will a WarmerBeam Roof make my conservatory darker?
Not at all. You can add a Sheerline S1 Roof Lantern or an Infinity frameless flat rooflight to flood your room with natural light, giving you the perfect balance between a solid, insulated roof and a fully glazed space.
Can the WarmerBeam system be fitted to my existing frame?
Yes. The WarmerBeam system is so lightweight that it can be retrofitted onto existing frames and actually weighs less than a traditional glass roof, putting minimal pressure on your supporting walls and structure.
Can I customise the appearance of my new roof?
Absolutely. You can choose from a range of soffit, fascia and gutter colours, including a stylish double Ogee gutter system, to ensure your new roof blends perfectly with your home’s appearance.
Stay on the right side of Building Control
Local authorities in England and Wales don’t currently consider conservatory roof replacements to come under Building Regulations, if in doubt, please contact your local authority or speak with a member at Greenoak Concept & Design for further advice.
This can be costly and time-consuming for the homeowner. The good news is that our roofing partner, WarmerRoof, together with their chosen Registered Building Control Approver (RBCA), Build Insight, will take care of the building control certification process on your behalf.
Always Check
When planning your conservatory, you should check the Planning Portal website to find the full list of limits and conditions that your conservatory must comply with. The website is split into sections, as there are different regulations for properties in England and Wales, and you may find that if you live on designated land or in a Site of Special Scientist Interest, you must comply with stricter regulations.
Ambient Temperature
Fully Guaranteed
Reduce Bills
Reduced Noise
Get Your Orangery Roof Quote
Good original consultation with Dale, general advice without being pushy. Survey efficient and quote broken down and understandable. Very good team from Greenoak, work done as per schedule, clean and tidy. Very considerate when one of us was unwell, kept the noise down. Problem with garage door investigated and rectified very quickly. Really pleased with final result, completely transformed external appearance of house. Thanks to whole team inc Tom Jay Mike Dave Callum Ed and esp Mark and Tegan.
Amazing service from start to finish. Wouldn't go anywhere else, highly recommend to anyone.
This my second time using Greenoaks Conecept and design , I cannot vouch for them enough ! Dale and the team completed a very a high standard of work throughout on a few properties for me and would highly recommend to anyone looking .
Highly recommend this company. Had our conservatory roof done and they did a fantastic job. They kept us informed every step of the way of what would be happening. Cleaned up at the end of each day and was very hardworking, polite and friendly.
Dale has been a star. From his first visit to give me a price, to completion of the works. Punctuality and communication of the Greenoak team (Dave/Ray/Callum) was excellent.I am so pleased with the job that Green Oak have completed for me. They were professional, tidy and worked so hard. The job is finished to a high standard and I will 100% use them again. Would highly recommend.
Job was done in the hours I was told. Very efficient and happy with my new conservatory roof. Thank you and would happily recommend Greenoak
We recently had relacement windows and doors by Greenoak Concept. Many thanks to Dale and all the team,they are very professional, punctual, polite and leave the job in a clean and tidy condition. Very pleased with the outcome, many thanks to all at Greenoak.
Dale and the Greenoak team are fantastic; having delivered 2 large projects on our house, both on-time and on-budget (and with a laugh & smile!) we can’t recommend them enough! Thank you!
So far very happy with the installation . Our tired old conservatory has been totally transformed by the team at Greenoaks. They worked cleanly and efficiently whilst navigating our day today running if the house. We’re actually looking forward to the heat of summer and cold of winter!!
Dale, you and your team, thank you so much for your time and dedication. Our new composite Rock door looks and feels fantastic. It feels really good using a local company that cares about their customer from start to finish. Thank you
We have had a solid roof put on our conservatory by Green Oak. We were very impressed from the outset. Dale took time to explain every aspect of the build bringing a model of the roof so we could see the construction. Then he left us think about it and there was no hard sell. The workmen were very pleasant, friendly and worked extremely hard. Despite being one man down the other chap worked late into the evening to make sure the construction was finished on time ( rather than have to come back for a couple of hours the following day), as did the man doing the plaster boarding. Every evening the site was left tidy and all rubbish taken away once the work was finished. The plasterer and electrician also did a brilliant job and all works was finished on time. We are really happy with the end result and couldn’t recommend the firm more highly. John & Rita Dobinson
Dale was very professional in giving us sound advice and explained the whole process from start to finish. The job commenced on time, Mike and Mark treated our home with respect and were very knowledgeable and kept us informed all the way along. The quality of work is excellent and we would recommend them.
We needed 11 new windows of various sizes so we spent some time searching reviews for a highly rated but local Double Glazing window installer. Greenoak came out top of our search results, We reached out and Dale responded quickly followed by a visit a few days after. The resultant quote was very competitive versus other quotes we had received. It was an easy decision to go with Greenoak. Dale came across as very knowledgeable, friendly and genuinely customer focussed. He invited us to the showroom in Leigh where he took us through the detail to ensure we were fully aligned on requirements and expectations. We were very impressed with him and his business and by his overall professionalism. The installation took place on 20th Feb 2023 and took 4 days in total. The whole process was exemplary, we could not fault the team in any way. They were tidy, considerate and very thorough. We have had windows fitted before by various other company's but the quality of fit and finish from the Greenoak fitters was far superior. The guys worked solidly and clearly did not skimp on anything, ensuring that the windows were not only properly fitted but sealed professionally too. They did an outstanding job including clearing all of the old windows and rubbish Overall we'd rate Greenoak at 10/10. We felt reassured by their high standards of work ethics, integrity and customer satisfaction. We honestly doubt there is anyone better out there for this type of work. We therefore wholeheartedly recommend them Ian and Jenny
Fantastic job done by Greenoak, the guys were professional, friendly and a pleasure to have in my home. I couldn’t be happier with the job they did. Highly recommended.
Brilliant company, very friendly and easy to work with. Very pleased with the finished cladding on our office wall - excellent quality and good value
Replacement Conservatory Roof. Fantastic company and service from the whole team! Dale is great and gave me a quote for my new lightweight roof, great bloke and not pushy, loved the fact he gave a all in price rather than start low and add extras. The fitting team are fantastic!, Mike, Mark and Casper treated my home like their own, , great attention to detail and did everything I asked to get the perfect finish, I honestly cant find 1 fault and I am fussy! I could not be more happier with my roof!! Take my advice, Don't look anywhere else ,I cant rate them highly enough. Greenoak are the BEST!
Following our initial discussions with Dale, our expectations were already set high when it came around to installation. Some truly awful weather right at the start of the installation virtually wiped out the first two days work, and the anticipated seven day build seemed to be in jeopardy right from the start. But Mike and his crew - supplemented by two and sometimes three others, working in still inclement weather, brought the build back on schedule by the end of day five, and the plastering and electrical second fix over days six and seven meant the whole project was delivered to time, and budget meaning that our initial high expectations had even been exceeded. I have nothing but the highest regard for their workmanship and scheduling - and not forgetting Dione in the office who kept me informed throughout and efficiently managed the stage payments. In my experience it is unusual to receive a great sales pitch and then to have that exceeded by the installation teams - I couldn't recommend Greenoak's services more highly.
Our team are
ready and waiting
to help you...
Greenoak Concept & Design have been raising the standards for more than 14 years.
More about us: We’re an independent Essex-based specialists in high quality UPVC Windows, Doors, Tiled Conservatory Roofing, Wall Cladding, and Fascias, Soffits and Guttering.

