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The quick way to find a local External Wall Insulation specialist in Gwynedd

There are 42 External Wall Insulation specialists in Gwynedd, and last month we helped homeowners get quotes for their home improvement jobs.

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A family run local business trading in North wales for over 20 years.We undertake all aspects of home improvements from a simple tap swap to full house refurbishments. Customer satisfaction is our number one goal!

Latest homeowner review

Reviewed by Adam on 9/8/2024

Didn't clear the weeds and bramble from behind the side gate other than that they did what I ask them to do

North West Render Systems Ltd - We have the experience & expertise in rendering the exterior of your property. Using our specially selected coating systems, we can provide protection for even the most exposed properties.

Latest homeowner review

Reviewed by Jacky on 11/11/2019

Still waiting for quote!

We are a family runned bisuness with 50+ years experience combined and with military experience behind us. Our aim is to provide the best service possible to all of our clientele as well as ensuring your preferences are being heard and met. Our services range from, joinery, ground work, extensions, kitchen fitting, custom furniture and so much more. No matter how big or small the job is we will do them at a price that is fair and matches the quality of service we provide.

Expert Damp Proofing & Property Preservation Services Home Building & Surveying Company is a leading provider of damp proofing, wall coatings, and property preservation services across the UK. With over a decade of experience, we specialise in protecting residential and commercial properties from moisture damage, mould growth, structural decay, and woodworm infestations. Our team of certified professionals ensures every project is completed with precision, using cutting-edge techniques and high-quality materials to enhance your property’s durability, appearance, and value. Why Choose Home Building & Surveying Company? - Over 10 Years of Industry Experience - Certified Damp Proofing Specialists - Tailored Solutions for Homes & Businesses - Guaranteed Long-Lasting Results - Competitive Pricing & Free Consultations Comprehensive Property Protection Services 1. Damp Proofing Solutions Moisture can cause severe damage to your property, leading to mould, decay, and structural instability. Our damp proofing services prevent water ingress and rising damp, ensuring a dry, healthy indoor environment. 2. External Wall Coatings Enhance and protect your home’s exterior with our advanced wall coatings. These weatherproof solutions defend against harsh UK weather, preventing cracks, damp penetration, and fading while improving kerb appeal. 3. Basement Waterproofing & Tanking We offer expert basement tanking services to prevent water damage and create dry, usable underground spaces. Whether converting a basement or preventing flooding, our waterproofing solutions provide peace of mind. 4. Mould Removal & Prevention Mould not only affects property aesthetics but also poses health risks. Our mould remediation services eliminate mould growth and prevent future infestations, ensuring a safer and cleaner living space. 5. Woodworm Treatment & Prevention Protect wooden structures from decay with our specialised woodworm treatment services. We use industry-approved solutions to eliminate infestations and prevent future damage to beams, flooring, and furniture. 6. Condensation Control Solutions Excess condensation can lead to damp walls, peeling paint, and mould growth. Our ventilation and insulation solutions help regulate indoor humidity, creating a more comfortable and damage-free environment. At Home Building & Surveying, we are committed to protecting and enhancing your home or business with industry-leading damp proofing and property preservation services.

Latest homeowner review

Reviewed by Roger on 4/4/2025

Ian came round to take a look at a damp patch that had started showing up on one of the utility room walls. He turned up on time, was really friendly, and clearly knew what he was talking about. He gave everything a proper check over and explained what was likely going on in a way that actually made sense. He didn’t try to make a mountain out of a molehill or push for any unnecessary work—just gave honest, practical advice on what to do next. Really appreciated how straightforward and helpful he was. Would

We are a family run business with over 40 years experience in exterior weatherproof coatings and renders. Our 2 coat rendering system is available in an extensive range of colour choice which suits any property style or customer preference. We are able to offer our virtual quoting system without initially visiting your home with us also being able to attend your property to discuss your options if required. We only use the finest products and Wethertex have been manufacturing in the UK for over 45 years with their high-performance wall coatings. Our confidence in the products makes it effortless in offering our 15 year guarantee. An insurance backed guarantee is also available if required which many local “one man traders” are unable to offer. We have carried out works for thousands of satisfied customers over the years and can provide example properties in your area for reference purposes. We Specialise in:- . Two coat silicone render system in a colour of your choice . Render repair system in a colour of your choice . Insulation boarding with polymer render finish in a colour of your choice . Stopping penetrating damp Our surveyors and office staff are always on hand to offer advice and talk you through the services we offer. Insurance quotes (there is a £250 returnable charge upon receipt of deposit) Our minimum order value is for 9x3 metre (30ft x 10ft) coverage Finally, our Rated People ratings speak for themselves, many of which are 5* **Please note we are unable to offer Internal plastering, Internal painting or decorating**

Latest homeowner review

Reviewed by K on 28/10/2024

I recently had some render work done on my house by Spraytex, and I couldn't be happier with the results! The quality of the work is outstanding, and it has truly transformed the look of my home. Debbie & Siobhan provided good customer service throughout the entire process, answering any questions I had. Additionally, the work area was left very tidy after each day, which I really appreciated. I highly recommend Spraytex and Gaz (Installer) for any rendering needs!

At RLC Plastering, we combine years of expertise with a dedication to quality on every job. Based in Manchester, we provide comprehensive plastering services to both residential and commercial clients. Our offerings include loft hatches with stairs, skimming, artex coverage, media walls, dry lining, rendering, floor screeding, timber partitions, and polished finishes. Whether it’s a minor repair or a full renovation, our team is focused on achieving high-quality results that elevate your space.

Latest homeowner review

Reviewed by Martin on 21/6/2025

Great job, good lads and a very good price compared to the other quotes I got. Definitely recommend

Welcome to Property Renovation and Decorating Services: " PROFESSIONAL SERVICE " We are professionals builders with over 17 years experience on all building works: extension loft conversion refurbishment bathrooms kitchens painting and decorating plastering, wood flooring, carpet fitting, tiling. building works undertaken: General Building, New Builds, full Interior & Exterior, renovations and much more. Emy has been providing professional home renovation services for over 17 years. He is praised by the customers for his attention to detail, responsiveness, timeliness and quality work. Call (text) for a free consultation and estimate:

Latest homeowner review

Reviewed by Godfrey on 25/6/2025

other end, this is to be removed and straightened up. Bricks above the new external lintel appear to have become loose and stuck back in with expanding foam. Workmanship regarding the window and lintel installation on site is extremely poor. Please book another inspection once the issues above have been resolved.

CGR Property services is a family run business with over 20 years of experience in the building industry. Specialising in fireplaces creation, chimney repairs and plastering for many years we have developed a diverse skill set in structural building work which uniquely qualifies us to carry out smaller building work inc , property repairs and small convertions like garages in office spaces or playrooms along with many other small projects Whether it's a minor repair or a full home renovation we can deliver professional skills at a fair price. It's our highest priority to get the job done right the first time on every assignment. We provide a full consultation to explain avaliable options so that you can choose the service that's right for your home. We strive to meet your projects needs and save you time and money! Now offering full groundworking and patio construction services

Latest homeowner review

Reviewed by Catrin on 14/7/2023

Very good and quick. Phoned up at 10am and had someone out looking at the job less than 2.5 hours later. Chris was very helpful and happy to answer any questions.

We are available for commercial or private work, large or small. Our priority is customer satisfaction aiming to provide reliability, quality and value for money whilst being clean and tidy. We strive to provide all this in a polite and pleasant manner.

Latest homeowner review

Reviewed by Rod on 26/1/2017

Excellent.

All aspects of plastering Years experience Competitive honest prices References given if asked — Check out my pages LT Plastering Services / Facebook @ltplastering_ / Instagram

Latest homeowner review

Reviewed by R on 15/5/2023

A.Gallagher & Son

External Wall Insulation in Gwynedd

A. Gallagher & Son provide services across North and Mid Wales and the North West. We employ only local specialist tradesmen for slating, tiling, flat roofing, lead work, fascia and gutters and solar PV. We are able to take on works of any size to the most complex designs and specifications. Our Roofing Services Include: New Roofs Roofing repairs Re roofing Slate and materials Solar panels Other general building Get FREE quotes and friendly service. Members of National Federation of Roofing Contractors Velux approved installers We believe high quality standards of work is an essential key in the companies growth and development.

Latest homeowner review

Reviewed by Steve on 24/12/2024

Paul Hughes

External Wall Insulation in Gwynedd

We do all aspects of Plastering and rendering fully qualified and insured Damp proofing Limelite Dryzone Rendering Pebble dash K rend Parex Weber External wall insulation Internal wall insulation Room in roof

Latest homeowner review

Reviewed by Debbie on 2/8/2024

This man did a great job and I've since had him do my bathroom and then a massive job in my lounge. Immaculate work. Great personality. Always eager to make his customers happy. Unfortunately I've lost his number recently so if you see this Paul, please get in touch.

We were established in 1985 we are a family based business with additional staff members. We pride ourself in offering a range of services to a high standard.

Latest homeowner review

Reviewed by Nigel on 25/7/2020

Having been let down very badly by the previous builder, we really needed help. We were most fortunate that we found Dave Minton; he was personable and easy to deal with from the outset, did what he promised and achieved a high standard of meticulous workmanship throughout. Timekeeping was spot on, the workforce was polite, cheerful and efficient at all times. Project management was fine, it was clear what was going to be done on site each day. We are delighted with the end result. Highly recommended.

ADKbuilding

External Wall Insulation in Gwynedd

Latest homeowner review

Reviewed by James on 23/1/2017

I'd highly recommend Alan and Kieron from ADK Building. They installed our bathroom to a very high standard from the plumbing through to tiling, installing underfloor heating and constructing custom made shelving to overcome a challenging job. Alan is very friendly, helpful and polite, he discussed the requirements in detail and any unforeseen problems were explained and dealt with. The work area was left clean and tidy each day.

PEP CONSTRUCTION LTD

External Wall Insulation in Gwynedd

At P.E.P Construction ltd, we offer a wide verity of service in the construction sector, from anything as small as you can think to as big as you want and as high end From groundwork’s to Extention all the way to new builds look no further, we have a team of trades all under one roof l, with a professional and friendly service start to finish look no further

Latest homeowner review

Reviewed by damian on 5/12/2024

We are well established company with over 20 years of experience. We employ high range of specialist to provide best quality standard. Our goal is to provide the best quality service and 100% clients satisfaction.

Latest homeowner review

Reviewed by James on 26/11/2021

Excellent work and customer service professional job friendly happy to do a few extra jobs would highly recommend

C&K PLASTER

External Wall Insulation in Gwynedd

C & K PLASTER takes on all aspects of plastering work, from ceiling replacement, artex removal, re-skims and rendering. We are based in Manchester, although we cover the length and breadth of the country. With 10 years experience, you can be sure you're in safe hands using C & K PLASTER.

Latest homeowner review

Reviewed by David on 18/6/2025

Carl did several jobs for me: 1)waste removed from the Airey. 2)re-pointed brickwork in the top corners of the Airey. 3) Fill in gaps in the outside sill of the bay window. 4) replaced the original middle piece of the grating covering the vacant middle of the Airey with a piece of tarpaulin because there is a window there for the cellar.

Wayne Jones

External Wall Insulation in Gwynedd

My name is wayne Jones I have 6 years experience of completing inside and outside rendering & plastering and tiling I am also k rend registered I like to pride myself in cleanliness and reliability

Latest homeowner review

Reviewed by Alwyn on 5/12/2019

Did the job for the quoted price ,turned up on time as promised and happy with the end result.would use again.

BH Home Services Ltd

External Wall Insulation in Gwynedd

Elevate your outdoor space with BH Home Services Ltd. We specialise in: Decking: Wood and composite options for a stylish, functional space. Fencing: Privacy and curb appeal in perfect balance. Slabbing: Transforming patios, walkways, and driveways. Gardening: Bringing vibrancy and charm to your landscape. Why Us? Expertise: Skilled craftsmen with years of experience. Quality: The finest materials for lasting results. Personalization: Tailored solutions for your unique vision.

Latest homeowner review

Reviewed by Graham on 6/8/2024

These guys were excellent; they quoted a good price, turned up when they said they would, did a good job and tidied up after themselves. Very pleasant and helpful throughout. Happy to recommend.

G.N.C provide an outstanding quality service and all our work is guaranteed for your peace of mind and ours. All aspects of roofing and general building work undertaken inside and out.We will provide a free face to face quotation service and advice with no obligations. All our employees are fully qualified in their specialty field. With over 20years experience and over 60 new build houses under our belt there is no job too big or small. All our work and craftmanship is first class and the quality speaks for itself.

Latest homeowner review

Reviewed by Magda on 4/10/2024

,very professional ,quick answer and very responsible price …I highly recommend it

V Martin

External Wall Insulation in Gwynedd

We offer a wide range of plastering works k Rend Parex. Eco Rend and Webber Also building works patio driveway and renovations Thanks

Latest homeowner review

Reviewed by Victoria on 8/2/2025

Absolutely top class team, so helpful, went above and beyond to do a superb job. Would highly recommend Vinnie and his team, so professional.

Revamp Builders

External Wall Insulation in Gwynedd

Here at revamp builders we offer a full build experience with fully qualified joiners, bricklayers, plasterer’s, plumbers and electricians fully city & guilds approved. With over 26 years of experience in new builds, extensions, renovations and kitchen fitting.

Latest homeowner review

Reviewed by Chris on 14/4/2024

Fantastic job done by Phil and the gang with the massive task of repointing my large patio areas. I can highly recommend these guys for aqll your jobs.

MCE Plastering

External Wall Insulation in Gwynedd

Based in Oldham, MCE Plastering is a trusted, rated and reliable team of plastering/ rendering specialist. We have been providing customers in the North-West of England and surrounding areas with a high-quality finish for over 5 years. Whether it's a small repair or complete install we work hard to ensure that all of our staff work to high standards using the best techniques and products for the job. Why not get in contact for your quote today!

Latest homeowner review

Reviewed by Jane on 11/6/2025

The guys worked quickly, efficiently and tidily. They explained what they were doing and couldn't be more helpful and polite. I would highly recommend them to anyone, Our home looks loved once more.

MASTER

External Wall Insulation in Gwynedd

We are a period/listed property restoration company. We specialise in traditional materials and methods. - Lime rendering & plastering with horse hair. - Lime pointing. - Masonry repairs. - Paint removal using the Thermatech hot steam cleaning system. - Brick/stone feature walls. - lime wash - Breathable Painting. - lime plaster/render We often work with conservation officers from the authorities to ensure our works are of the highest standards.

Latest homeowner review

Reviewed by Alexandra on 10/5/2025

Marcus and his team did a great job for us reseating our period porch stone paving and repointing with lime mortar, including matching a reclaimed stone slab to replace a broken one

All aspects of internal and external building work undertaken. No job too big or small, Free estimates well established company fully qualified and insured.

Latest homeowner review

Reviewed by Terry on 20/2/2019

Punctual,fair price,standard of finish good,awaiting final finish & replacing of light fittings.Would use again & recommend to any person looking for similar undertaking.

Total build and maintenance services here in Holyhead we have 40 years experience in renovating and repairing homes and we specialise in Building,brick laying,plastering , joinery,tiling,roofing, slabbing,land scaping, extension s,ground works,kitchens, bathroom,loft conversion and driveways ,we believe in honesty, transparency and we are perfectionists

Latest homeowner review

Reviewed by DAVID on 25/6/2022

VERY GOOD JOB AND A VERY GOOD WORKER.

ashton construction

External Wall Insulation in Gwynedd

Hi We are Ashton and Carman construction. AAC. We are both time served advanced craft carpenters with 20 years experience. Along the journey we have become multi trade builders through experience in all aspects of construction from domestic and maintenance to planning and new build. Our experience and hard work ethic allows us to provide a smooth sailing thorough completion to all your construction needs. No job to big or small. Considerate , attentive , trustworthy and dedicated. Thankyou for your time.

Latest homeowner review

Reviewed by Chris on 19/5/2025

Great quality workmanship and excellent customer care throughout. Really appreciate the time and effort the guys took in making sure I was happy with the way the job went and that I got exactly what I wanted. Thank you so much - I’ll definitely be in touch for future projects

Fully Qualified time served tradesman with over 20 years experience. Fully insured. Buisness built on reputation

Latest homeowner review

Reviewed by Dorothy on 17/2/2025

Could not do job urgently therefore should not have been considered

Haus Company

External Wall Insulation in Gwynedd

Haus Company specialise in exterior coatings, silicone & acrylic render & textured spray render.

Latest homeowner review

Reviewed by Sara on 15/5/2025

P Gardener Services

External Wall Insulation in Gwynedd

P.Gardner Services - Family Run Experienced Builder & Sons Based covering North Wales. We specialise in Design and Construction of Bespoke Modular Garden Rooms & Pods, Home Offices, Garage Conversions, Landscaping, Artificial Grass, Composite Decking, Patios, Fencing & Glass Balustrades. EDPM Rubber Roof Installation Specialists. External Cladding Specialists. Experienced Ground-workers & Civil Engineering back ground. Kitchen & Bathroom Fitters. We have a great Team now to cover all needs for Building, Landscaping, Roofing, Mains Water, Sewage, Drains, Electrics, Plumbing, Underfloor Heating, Flooring, Tiling, Plastering, Rendering, Decorating & Finishers.

Latest homeowner review

Reviewed by Kandiece on 16/10/2024

Following some work done successfully in 2022 by this company, I reached out to have some similar work done in 2024. However, I paid a deposit for the work, the job was never started, communication stopped, despite me reaching out via phone and email, and I never received my deposit back. Highly disappointing after a great experience the first time round. I would not recommend.

A Building , kitchen and bathroom company with all aspects of joinery, plumbing, electricals, gas fitting and tiling, extension works and full re furbishments. With over 25 years experience we can accomodate all aspects of your fit/project, and we offer to talk to previous customers and can see photos of previous works to make your job look the best and to satisfy your project needs

Latest homeowner review

Reviewed by Peter on 7/6/2025

Latest homeowner review

Reviewed by keith on 29/6/2013

e.mail quote, very helpful in explaining material costings.

Celtic Heritage is an established company with over 30 years experience in the construction and double glazing industry. We benefit from a level of knowledge which enables us to give in depth, and valuable advice to our clients.

Latest homeowner review

Reviewed by Lee on 5/12/2017

Great company and a good team of Lads.

Hi , I'm a renderer and plasterer from Prestatyn, over 30 years experience in all aspects of plastering and rendering. Fully insured with public liability. Friendly and reliable small team. Kind regards Steve Clwyd plastering services.

Rated People

External Wall Insulation in Gwynedd

Loft conversion specialist, with 25 years worth of experience.

AA House Renovation specialises in House Extensions, Tiling, Roofing, Plumbing, Bathroom Fitting, Kitchen Fitting, Wall Removal, Fitting Steel, Paving and interior decoration. We can complete your project at the lowest quotation, we are insured up to £1 Million pounds to safely guarantee the job.

Welcome to sunrise windows and doors. Your Trusted Double Glazing Experts At sunrise windows and doors we specialize in the manufacturing and installation of premium double glazing solutions for homes and businesses across England. With years of experience in the industry, we are dedicated to enhancing the comfort, energy efficiency, and security of your property. We take pride in delivering high-quality windows, doors, and conservatories that not only improve insulation but also add style and value to your space. Whether you need bespoke designs or replacement glazing, our skilled team ensures a smooth and professional installation from start to finish. Why Choose Us? • Custom Manufacturing: Tailored double glazing solutions to suit your property’s needs. • Experienced Installers: Our qualified installers guarantee precise fitting and outstanding workmanship. • Energy Efficient: Our products are designed to keep your home warm and reduce energy bills. • Nationwide Coverage: We proudly serve clients across all of England. • Customer Satisfaction: We’re committed to delivering exceptional service, with a focus on quality, reliability, and attention to detail. Whether you’re renovating, upgrading, or building from scratch, we’re here to provide double glazing solutions that combine performance and aesthetics. Contact us today for a free consultation or quote!

Square Line LTD

External Wall Insulation in Gwynedd

Hello everyone! We are a company that deals with all aspects of plasterboard,grid ceilings plastering,including everything that is done inside the room, we bring you to know that we take responsibility and punctuality so that the customer's face is pleasant, we have professional fixers in the team and with experience from 6 to 9 years only in the UK! We are happy to serve you in the functions we do for our clients, so do not hesitate to contact us to have a successfully understood discussion based on the aspect. Thank you very much and I wish you all the best

J.K.ModernBuild

External Wall Insulation in Gwynedd

Hi, my name is Jamie. my company is J.K.ModernBuild, I have many years of experience in the building trade and can offer advice on the job you need to be undertaken. we undertake many trades and furnish to a very high standard and professionalism -extensions -groundwork -landscaping -plastering & rendering -bathroom & kitchen fittings -soffits, fascias & guttering we take pride in our name and work, contact me and I would be happy to help and answer any questions you may have.

Civil Jobs L. Merseyside

External Wall Insulation in Gwynedd

"For over 2 years our professional domestic and /commercial painters and decorators have been providing top quality, fully insured and guaranteed painting and decorating services in Liverpool. Our highly skilled painting and decorating team can provide a range of services including industrial and commercial painting, domestic painting and decorating, house painting, wallpapering, paint stripping, plastering. All services are available on a large or small scale 'for commercial premises and private homes"

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Having had new door and windows installed, I'm now ready to get external wall insulation put up on my mid terrace 2 storey house. I would like to...

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I'm eager to have the front wall of my 2 storey mid terrace home insulated externally, with a smooth render finish and then painted. I did have a...

How our service works

  1. Create a job - it's free

    We'll connect you with the right tradespeople, from over 30 different trades.

  2. Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  3. Check ratings

    Look at each tradesperson's profile to see their ratings and reviews.

  4. Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  5. Job done

    Leave a rating for your tradesperson based on quality, reliablity and value.

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