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Flat Roof Covering

Are you searching for a competitively priced flat roofing contractor?

We offer a modern roofing approach for all of our domestic or commercial clients. From simple extensions and new builds to complex repairs or overlays; our advanced systems are designed and installed to last.

We can do extensions, balconies, summerhouse, porches, bay windows, dormers, extensions, garages and barns!

The modern waterproofing systems we install are at the forefront of current roofing technology. Our team is fully trained and qualified to recreate your flat roof area into a sleek and sound system.

GRP Roofing

Glass fibre roofing (GRP) is a conventional roofing system applied throughout the UK.

From a Full GRP roof design and installation to a small repair, we can help you. Our team of skilled and knowledgeable roofers are on hand to deal with your project – big or small. A correctly laid fibreglass roof will last for at least 30 years with no decay.

What are the benefits of Glass Fibre Roofing?

GRP can be applied to create any form of roof.

Glass fibre roofing can be done without the need for heat.

GRP is a cost-effective roofing solution as it is easy to install and requires fewer workers than other roofing systems.

Glass fibre flat roofs are amazingly durable. When laid correctly, they can be walked upon.

We offer GRP roofing in London and within a 50-mile radius.

We focus on fibreglass roofing for flat roofs that are carried out to the highest standards. We can produce top quality, guaranteed, weatherproof and maintenance-free GRP roofs. The high-quality GRP roofing will cover your whole roof area, and it is maintenance-free and robust enough to step on or place stand steps for access for window cleaners.

A GRP roof is a conventional boarded roof coated in a layer of fibreglass (polyester resin with glass reinforcement) and painted with a polyester topcoat. It is extremely strong and cannot be cut with a blade, so it gives a solid roof structure. A continuous GRP covering has no joins, no welds and no seams.

Liquid Roofing

Liquid roofing systems are usually a practical and cost-effective way to give your existing flat roof an extended life.

Liquid roofing systems have been in the business for many years now; however, its innovative materials that we have that has made the change.

If your roof is complex or you are covering an old felt or asphalt roof, then a liquid roofing system is probably the most suitable system to use. There are no joints, and hence there is nothing to come apart at a later date.

Warm Roofs

The Benefits of a New Warm Roof

There are many benefits and advantages of updating your roof to a warm roof, including:

A warm roof produces little or no thermal bridging.

A warm roof is breathable, letting moisture out.

A warm roof can be retrofitted without too many difficulties.

A warm roof lets heat be retained within the home.

Flat Roof Insulation

Flat roof insulation is growing increasingly important. The better the insulation in your roof, the more energy you save.

Part L of building control provides the targets that need to be reached for insulation in refurbishment and new builds. There are two conventional methods of insulating flat roofs.

If you are curious about saving money on your electricity or gas bills, retaining your heat in as well as decreasing your carbon footprint, then get a quote for flat roof insulation.

Flat Roof Repair

After countless years of repairing flat roofs, we can sincerely say that the bulk of flat roofs leak from flashing around the edges of the existing roof.

If routine maintenance was carried out, most of these problems with the flashings could be picked up, and the roofs would not decline as they do now. Proper maintenance of your flat roof will decrease costs in the long term.

Vapour Control Layers

A vapour control layer helps you shield your building from the results of condensation. Condensation is formed while warm, humid air rises and condenses into water on touch with the colder covers above the insulation. The concept behind a vapour control layer is to fit it on the room side of the insulation, so it prevents the passage of warm moist air entering the structure. We specialise in a warm roof system and have been working with building control to guarantee our systems exceed that which is specified within the regulations.

Why do You Require a Vapour Control Layer on Warm Flat Roofs?

Reduces the amount of warm, humid air that enters a roof

A VCL blocks damp and mould, which, in turn, stops major respiratory problems.

The VCL acts in conjunction with the vented cavity to reduce the risk of dangerous condensation.

A vapour control layer will stop proper insulation, getting wet and losing its thermal attributes.

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Services we offer:

- GRP flat roofing

- Liquid flat roofing

- Gutters, soffits and fascias

- Flat roof cleaning and maintenance

- Integrity testing

Get in touch with us and we will answer promptly and can even visit the property the same day in an emergency.
We will make the best design for you


Q: Where do you provide your services?

We work across London, Surrey, and the South East.

Q: How long does it take to do a full house refurb?

On average a full refurb of a standard 2 bedroom property will take 6 -8 weeks.

Q: How much do house refurbs cost?

A standard two bedroom property will usually cost around £40k for mid spec finish. Using cheaper kitchens and bathrooms and other materials can bring this down as far as £30k and high spec finishes can be upwards of £100k.

Q: Can I tailor the service to my specific requirements and designs?

Yes, we will work with you every step of the way to make sure that your completed project is to your requirements. Although we complete many refurbs, no two are ever the same. We aim to help all of our customers add their own little bit of personality into their new home or investment.

Why choose us?

  • Professional Quotations
  • Up to 5 years Work Warranty
  • Own Designers
  • Specialists in High End and difficult projects
  • Member of Federation of Master Builders
  • Trustmark Member
  • Health & Safety compliant
  • We have decades of Experience
  • Friendly, reliable and clean Builders
  • We cover London and a 50 miles radius
  • Residential and Commercial Services
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feedback from our customers

We might want to express gratitude toward Red Builders for the Refurbishment they finished for us and the work done. We were intrigued by the professional approach of the entire staff, we have got endless commendations from all who see and use it. The team was obliging and set aside a significant effort to clarify all the information required from the design drawings, the advancement of the work to the completed venture. A point by point receipt was given for all the work and materials with no hidden cost. Words can't describe how cheerful we are with our new home. If we describe Red Builders, they are perfectionist professionals who caused us to feel secure, realizing the completed project would be accurate and neat, and it was. We have prescribed Red Builders to everybody searching for building work.

Leonn Berry

We are completely pleased with the change in our cellar, and we can't thank you enough for all your difficult work and your endeavors. We especially valued the counsel on a few changes Red Builders proposed which prompted considerably more productive utilization of room. We are very happy with your assistance, and we trust we get the chance to cooperate once more. The project manager and his group kept to the contract just as spending plan and consistently refreshed us on the turn of events and choices that we expected to make. The builders were respectful toour home, keeping the noise to the possible minimum, additionally keeping the spot perfect and clean. It was a wonderful experience, and we are very much satisfied. With the team's understanding and skills, everything was on schedule, they conveyed a phenomenal completion. We would recommend Red Builders to every one of our relatives and every house owner.

Claire Keating

Red Builders was to make some significant alterations and a loft extension to our home. We requested some critical changes during development, and the project manager was happy to give professional recommendations on every issue. From the underlying idea on to its fulfilment, we were surprised by their attention to detail approach and the priceless guidance he gave all through. The project manager arranged the breakdown of cost precisely, with straightforwardness, and trustworthiness. His group of builders were first-rate and did their best. I was so astonished by the work they accomplished every day to the point that the work was finished before the cutoff times. We are certain to recommend Red Builders Building Company to every single customer.

Joe Whaley

We applied to different companies for quotes and got what we viewed as a reasonable and realistic quote for a genuinely extensive renovation of our home from Red Builders. The project manager and his group worked admirably and exceeded our desires. They included us in the selection process for the property, way to deal with the work and specifications. They were truly flexible and effectively obliged our decisions for additional work. The work has been done to the most professional level in a friendly, considerate and ideal style. Red Builders entire staff was gathered outside of our home ten minutes before the start time. The things that surprised us more than anything was the way that the project manager recollects everything about the details and takes individual liability for ensuring that you, the customer, are totally happy with the work that you need to be done. I have worked with different building organizations on various under takings throughout the long term. Red Builders are most likely the best that I have worked with, and I have no hesitation in suggesting him. Catch him in case you can!

Bridget Snooks

I am writing to thank you for your expertise, knowledge, reliable attitude showed by yourself and Red Builders team to the fruitful outcome of this project. We asked Red Builders to redesign a little flat and, despite the fact that the flat is small, it was significantly difficult to renovate it as it required a detailed renovation. Red Builders performed brilliantly. The Red Builders staff we were in touch with were amazingly capable and pleasant. As in most of such cases with are design, little issues emerged during the remaking period. Red Builders had the option to manage these issues in the most effective and practical manner. The project came in on the financial plan and due to the schedule. They did a wonderful job, and we currently love our flat. When the activity was done, Red Builders kept on following up and disclose things to us about the flat and its equipment after we moved in. I would highly suggest Red Builders.

Kindly pass my gratitude to all engaged with this project.

Jonathan Gough

A little more than a year back, I planned my first renovation project. I had never done anything like this, and after the web research, I sourced 4-5 quotes. I chose to go for Red Builders since they were sensible and their quote was all around organized and detailed. The Job included a lower ground expansion and house redesign. I don't have anything but beneficial comments about capability. Their work was done to the highest level. Their tiling, carpentry and painting were remarkable, and the project was finished on schedule and due to the plan. They were negotiable about the inside plan changes and permitted me to be engaged with the cycle even to the point of helping me source-specific installations I needed for the house, keeping in topic with the style we had gone for. They gave me useful recommendations on specific components I had disregarded, for example, up-cycling the current wood planks, extra water siphons required and incorporating the outer bi-folds to make the augmentation even from the outside instead of inside. On-demand Red Builders made cabinetry around our chimney to match our new kitchen and truly, the craftsmanship and detailing makes them appear identical. When the undertaking was done, it was hard to accept that it was the same house.

George Elliot

When embarking on discovering an organization to plan and build our office, I had clear models at the top of the priority list. The organization must be lively, clever, solid, overflowing with thoughts and value for money. Red Builders beat the competition by a reasonable mile. Indeed, even before winning the project, the attention they paid to us was unmatched. When we began, the norms didn't drop. They committed an over the top measure of time to my venture and went far above what was required even to where it was evident it wasn't to their greatest advantage to do so. They were very supportive all through the process, continually delivering on our details and deadlines and totally adaptable toour tasteful changing preferences. They're similar to an extended family on building site. Without any doubt, the best I've worked with.

Ryan Woodcock

I have been suggested Red Builders through a friend of mine who had their kitchen wonderfully extended so we chose to reach them about a potential loft conversion and we couldn't be more grateful. The plans were delivered very fast, precisely, and I truly felt they accepted our interests and thoughts, parts that were not achievable were given different other options, and they truly set us straight during this process. We are happy with the outcomes from the start to the end. Strongly recommended. It was a pleasurable experience, and I wouldn't hesitate to use again.

David Walker

We are living abroad, and after a tenant had harmed our terraced house, we found that we need to set out on a top to toe restoration of our property. We got various quotes, and the Red Builders reaction was the most careful and thorough. Red Builders were incredibly useful in working through the selection and reacting quickly to each of our inquiries and concerns. Red Builders might not have been the cheapest reply we got, however, there was absolute clarity on what we were paying for and the nature of work we were getting. The project manager and his group at that point dealt with the venture, especially professionally - with regular and definite email and photograph refreshes, they exceeded all expectations in conveying a remarkable outcome for us. Our home presently looks spectacular - and each renting office that has seen it has remarked on the exceptionally high caliber of the work. In case we needed to do this once more, we wouldn't spare a moment to call Red Builders, and are very glad to prescribe them to anybody searching for top quality, productive, friendly or more all very professional and experienced building company.

Jennifer Smith

Red Builders changed over a mid-Victorian patio loft. It was done due to the deadlines confirmed at the beginning and the budget approved, with a magnificent quality completion. The group of manufacturers, builders, electricians and plumbers set up by Red Builders were unpretentious and extremely enterprising. When there were inquiries en route, they were replied, and the Red Builders group were consistently accessible on the mobile if necessary. Red Builders were flexible and responsive. I was not anticipating works in the house, but once they were in progress, I was incredibly satisfied with how they went. I would suggest Red Builders without a second thought and would use them again for a similar activity without hesitation.

Amelia Morrison