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Cavity wall insulation specialists near me | Rated People in Porthmadog, Gwynedd

There are 106 Cavity Wall Insulation specialists in Porthmadog, and last month we helped homeowners get quotes for their home improvement jobs.

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Welcome to North Wales Plumbing & Heating Ltd, your premier destination for top-notch plumbing and heating services with over 20 years of dedicated experience. Our firm commitment to customer service and unwavering focus on delivering high-quality workmanship have made us a trusted name in the North Wales region. Specializing in all aspects of plumbing and heating, our skilled professionals bring a wealth of expertise to every project, ensuring your home or business receives the attention it deserves. At North Wales Plumbing & Heating Ltd, we go beyond the basics, offering a comprehensive range of skilled trades to address all your property maintenance needs. Whether it's installation, repair, or maintenance, our team is dedicated to providing efficient, reliable solutions. We take pride in our transparent communication, integrity, and commitment to client satisfaction, making us your go-to partner for plumbing, heating, and a variety of skilled trade services. Experience the assurance of quality and professionalism with North Wales Plumbing & Heating Ltd – where expertise meets excellence.

Latest homeowner review

Reviewed by Angie on 31/1/2019

Plumber didn't get back in the end.

J R Griffiths roofing we specialise at 're roofing, slate tiles and leadwork. also chimney work undertook. Rubber roof and also grp

Latest homeowner review

Reviewed by John on 7/8/2022

Reasonably priced, job completed the next day couldn't ask for anything more.

We have over 12 years experience in internal plastering and external rendering. We cover all aspects of plastering including Venetian (polished plaster) and microcement.

Latest homeowner review

Reviewed by Viktors on 18/11/2024

the worst job ever i have seen i hired anthony as a professional to do some finishing touches on venetian plaster but he didnt do it he took a deposit then he disappeared for three weeks telling stories that he was sick or he didn't have time when he finally came to do the job he did it even worse than before came with one can of filler and made my walls a ugly color arguing that they couldn't be done better didn't return the deposit! i don't recommend it to anyone, do not pay deposit this person

Latest homeowner review

Reviewed by dawn on 7/11/2024

Latest homeowner review

Reviewed by John on 15/12/2011

He turned up on time and kept us informed of progress. He is a conscientious worker and was willing to answer any questions we had. He left the working area clean and tidy. We will use him again

w gough sole trader

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Christopher on 16/12/2012

very quick responce,good price ,very clean tidy worker,excellant job,will recommend to friends.

North West Facilities are a one stop Building and Maintenance company with over 25 years in the business, for all your Building and Maintenance and property repairs. Please feel free to browse our website for a comprehensive insight.

Latest homeowner review

Reviewed by Alan on 6/10/2014

We want to reiterate that we would recommend this company without any qualm. We are happy that the job was completed within the financial limits we had set.

ASPRAY LIMITED

Cavity Wall Insulation in Porthmadog

Our award-winning claims management service aims to help policyholders throughout the UK make successful buildings insurance claims caused by storms, burst pipes, accidental damage, fire, floods or other events which lead to the property owners needing to make an insurance claim. We project manage and carry out the required repairs using our fully vetted contractors. Aspray always strive to reinstate the property to its pre-incident condition as swiftly as possible. Aspray Ltd are authorised and regulated by the Financial Conduct Authority for claims handling only.

Latest homeowner review

Reviewed by John on 14/5/2023

m i lewis

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by archie on 10/8/2008

arrived on time, carried out work with minimum mess, did a satisfactory job at price quoted.

Hackett Contractors

Cavity Wall Insulation in Porthmadog

* 24 years industry experience * Advanced Craft bricklayers * Time served plasterers * Approved contractors for Manchester City Football Club * Have worked for the BBC on two occasions 'DIY SOS and The Cowboy Trap' * Professional, friendly approach

Latest homeowner review

Reviewed by Stephen on 22/10/2016

Excellent work, it was a large project but they handled it perfectly. I now have a beautiful conservatory which is ready for decorating and furnishing. Couldn't be happier with the result. Friendly, professional builders and would definitely recommend them. Price was very competitive and conservatory finished to a very high standard.

A.Gallagher & Son

Cavity Wall Insulation in Porthmadog

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

Hello, I'm Gareth from Bangor, Gwynedd North Wales. I cover all areas including Wales and England. I have been working within the construction industry for over 10 years! I'm a hard working individual, with a strong hardworking team behind me organised by myself. All of my employees take pride in their work and are able to complete set tasks. I cover a variety of areas, This includes -Roofing -Groundworks -Earth works -General Building -Landscaping

Latest homeowner review

Reviewed by David on 28/12/2021

Excellent job polite efficient and would definitely recommend thanks for a great job

Latest homeowner review

Reviewed by Aileen on 4/4/2012

Efficient, reliable & experienced. Sorted out problem we had with unsuitable structural plans with our engineer and cleared work with building inspector no hassle for us as the customer whatsoever. did a great job at a good price.

jb joinery

Cavity Wall Insulation in Porthmadog

custom made & traditional carpentry&joinery my workshop is in rhos on sea most of my work comes from customer reconmendation new customers can ring i am a sole trader if its made of wood i will make it for you i am also a member guild of master craftsmen

Latest homeowner review

Reviewed by Tony on 17/4/2016

John was an excellent worker charged a reasonable rate and cleaned up after him. I would definatly call for him again if i need anything doing in his line of work

john e ball & Co Ltd

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by steve on 5/9/2012

would recomend john to anyone, very good

ML Hughes Construction cover a wide range of works depending on the service you require. Based in Bangor, Gwynedd, we offer free quotation without obligation and advice where needed. Give us a call to discuss any aspects of work you require to achieve the job you desire!

Latest homeowner review

Reviewed by Mark on 11/2/2019

Kenny did a very good job and has been most helpful

BOSS roofing & building

Cavity Wall Insulation in Porthmadog

(119) Read reviews

Hi I'm Charlie from boss roofing.boss roofing is a family run business and is a full service company meeting the roofing needs of commercial, industrial and multi-residential customers. We are proud to be able to offer services ranging from re-roofing to 24 hour emergency repair service. We are fully Insured.

Latest homeowner review

Reviewed by Marc on 29/1/2020

Very good job, extremely prompt and a good price.

John Roberts Builders

Cavity Wall Insulation in Porthmadog

I have been in the building trade since i was 16 and in the year of 2000 i became a sole trader in the building business. This gives me over 25 years knowledge in the building game. I specialize more into the stonemason side than the bricklaying side

Latest homeowner review

Reviewed by Mike on 22/9/2016

John capped, rendered and made good the lead work on our chimney, he also replaced badly worn roofing felt along the eaves with the addition of " Felt Support Trays" which help stop the new felt from rotting. His work was of a high standard as he takes pride in doing a good job. John and Bobby always left the job clean and tidy after each shift.

Fitting quality Conservatories, Windows & Doors throughout North Wales for over 30 years, Philip Neale are the experts in all areas of uPVC, timber and aluminium home improvements and we want to help you create your dream home.

Latest homeowner review

Reviewed by Keith on 27/9/2018

Excellent

PEP CONSTRUCTION LTD

Cavity Wall Insulation in Porthmadog

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

Steve's Plastering

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Carla on 26/1/2013

Called quicky, available immediately, turned up on time, did what he said he would do when he said he would for the price he quoted. Explained what he was doing and why. He also did a bit extra to get the job done properly. No fuss, just got on with it.

Latest homeowner review

Reviewed by Jamie on 10/2/2018

Great job from Matthew, absolutely satisifed on the quality of work, price, and service. Would recommend to anyone looking for joinery work.

We are a landscape and home improvement company and cover north, west wales and the Midlands. We specialise in all hard and soft landscaping. We aim to carry out professional work with nptc qualifications for any arb work and over 20 years home improvement experience in the team.

Latest homeowner review

Reviewed by James on 3/5/2022

Excellent service. Shaun was very communicative, and made sure the job was done well. Definitely recommend.

Mr Dion Morley

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Jo on 18/4/2012

Great, on time, within budget and reliable.

Jonathan e thomas

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Paul on 10/12/2013

Very professional. Kept me fully aware of job as it progressed. Met timescale for completion of work. Good quality outcome.

We offer a reliable and fast service covering all aspects of Masonry & Restoration work .

Latest homeowner review

Reviewed by Marko on 4/2/2014

LTC did a great job for us, quickly, without fuss or delay. I can recommend them for work with no reservation.

HTRoofing+Building

Cavity Wall Insulation in Porthmadog

We're Anglesey based roofing and building contractors with over 25 years experience. We specialise in all aspects of roofing, slates, tiles and flat roofing and also take on general building contracts when required. Professional work at affordable prices

Latest homeowner review

Reviewed by Tony on 24/2/2014

one word "fantastic" the two lads were great went about there work did a top job. thanks to rated people.com HT roofing + Building have a customer for life anything I need doing they get my shout. top class lads thank you.

Hubbard builder

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Paula & Heather on 20/5/2014

Cliff, he was efficient, reliable, well priced and an excellent tradesman. We called him in to repair a chimney breast and fix our garage which was leaking. We were delighted with the work on the chimney, he is a fantastic render and plasterer. cliff is now renovating our bathroom, plus our neighbours are also putting him to work. An added bonus is he is a good communicator so he was able to work with our two very different personalities with different ideas, Cliff took it all in his stride.

V Martin

Cavity Wall Insulation in Porthmadog

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.

Raffertyglazingspecialises in upvc products windows,doors,Frenchdoors,grp fibre glass roofing,all roofing systems,fascia,soffit,guttering system,chimney repair etc. all work guaranteed we are a genuine trustworthy company where quality and price meet

Latest homeowner review

Reviewed by Chris on 8/4/2022

Friendly and helpful. They fixed my roof without fuss.

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.

N E Construction

Cavity Wall Insulation in Porthmadog

Here at N e construction we do a range of work from big to small , building to landscape work , general maintenance , painting an a general tidy up,

Latest homeowner review

Reviewed by Gwion on 11/11/2021

Great guys

GMS

Cavity Wall Insulation in Porthmadog

Gareth, the proprietor of GMS is a qualified wood machinist by trade and has over 25 years’ experience working within the construction industry. Gareth first started the business in 2005 with a view to provide clients across North Wales and Cheshire with kitchens. In the last 10 years the business has diversified and now accommodates a scheme of works within construction from kitchens to bathrooms, gardens to bedrooms, fire and flood damaged properties and more. Gareth employs several staff and subcontracts to NICEIC registered Electricians and GAS SAFE registered gas engineers. Therefore, GMS can offer project managing and the client only needs to converse with one trade [GMS] rather than multiple. Thus, taking the stress out of the job.

Latest homeowner review

Reviewed by Mark on 23/2/2018

Great communication and work carried out to a high standard.

Macbrook Gas Ltd

Cavity Wall Insulation in Porthmadog

Macbrook gas started as a local heating company based in Norfolk. Over the following years we have grown into a national boiler replacement company, specialising in replaceing boilers at very short notice. We pride ourselves on being the most competitive in price at the same time delivering a 5* job and service. Finance options also.

Latest homeowner review

Reviewed by Roger on 2/7/2019

Very Good. Turned up on time, and completed the job of installing new pump on heating system the same day. Very pleasant tradesmen.

mack ground works

Cavity Wall Insulation in Porthmadog

we are a small familly run business, we cover all aspecs of drainage to garden landscaping.. no job to small.....

Latest homeowner review

Reviewed by Hugh on 14/3/2013

Any more work I have to do will be done by Mack - they are clean, polite, tidy and fast workers. They even left the remaining materials for my possible future use rather than taking away what I had paid for. Thoroughly recommended.

Latest homeowner review

Reviewed by Dennis on 2/11/2015

On time did a top job.

Our business is built on quality, reliability with a professional and responsive approach. Our handpicked team of qualified tradesmen specialises in property improvements, reactive maintenance and small building projects.

Latest homeowner review

Reviewed by Mandy on 26/1/2016

Excellent value for money. Professional and quality service.

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.

J&H Plastering

Cavity Wall Insulation in Porthmadog

J Hill Plastering drylining rendering All aspects of plastering interior and exterior

Latest homeowner review

Reviewed by Shelagh on 2/12/2024

Friendly informative quick to respond and quote received following day.

Mckenna Bell Group

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by bianca on 19/7/2013

George Bell came to work on some damp related issues in my flat in feb. since having completed the works the problems which first occurred have turned worse and George has been unwilling to get back in contact with me, despite chasing him for 5 months which only reaffirms that the job was poorly undertaken. The company main reception also seems to be a virtual reception so you can never speak with anyone helpful

M B Brickwork

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Richard on 14/3/2012

turned up on time, did a good job, thank you.

We cover all building and joinery work ,we do a good tidy job at a fair price

Latest homeowner review

Reviewed by Paul on 2/1/2025

Did the job and more. Cheers Paul

W.H Flooring

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by natalie on 5/6/2017

Do not use this trader. I have used Wayne in the past and he completed the job as quoted. Re-booked again this Easter to supply and fit carpet. He took the cash (over £1000) and we have been unable to contact him since. Currently going through small claims to try and get our money back.

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.

O Jones Installations

Cavity Wall Insulation in Porthmadog

Welcome to O Jones electrical, I've been an electrician for over 27 years now, doing everything from houses to bio gas plants. Here we offer a wide varied range of installation works, anything from electrical extra sockets, lights, switches, to complete new circuits, showers, cookers, out side supplys. We can do whole or part rewire installations. We do cctv installs, Bathroom/kitchen installations. We can also offer, plumbing works, painting and decorating, tiling and whole house refurbishments. All of our staff are trained to a high level and all works are carried out and completed to a high standered. All works meet the current British standard regulations, all electrical works come with certification.

Latest homeowner review

Reviewed by Linda on 17/9/2020

Owen Jones mishandled my house rewire while I was in lockdown in England and could not supervise. He left work unfinished (which I could not tell by the pics he sent so I paid for complete job), He left live wire outside where my outside light should have been installed, he left the electrical socket box on the wet floor behind my washing machine. He did not re-connect my jetted bath tub, nor did he provide me with a signed off certificate. I now have to hire another electrician. DO NOT HIRE

Ace Home Improvements

Cavity Wall Insulation in Porthmadog

Welcome to our family run roofing company, a highly reputable roofing company that can see to all aspects of your roofing needs. We have over 2 decades of experience and we complete all jobs efficiently and to the highest standards. Please give is a call regarding any problems

Latest homeowner review

Reviewed by Steve on 21/10/2024

Fast, efficient, friendly and extremely helpful

Latest homeowner review

Reviewed by Cheryl on 27/7/2024

They ruined my kitchen cut holes where there didn't have to be holes I'm disabled and stuck ìn bed They left me with no water or electricity an noway to cook for a week in this heat I've had to buy new cupboards an pay à plumber electrician an joiner as well to fix there mess if I could give them no star I would

JG Roofing

Cavity Wall Insulation in Porthmadog

Would you all kinds of roof repairs gutter repairs cleaning gutters alter alter building over cause fully guaranteed

Latest homeowner review

Reviewed by Baiba on 27/8/2024

Barrowclift House LTD

Cavity Wall Insulation in Porthmadog

Welcome to Barrowclift House – Driveway & Patio Specialists You Can Trust My name is [Your Full Name], and I’m proud to be the fourth generation of my family carrying on a tradition that’s over 70 years strong. At Barrowclift House, we’ve built our reputation on honesty, hard work, and consistently delivering high-quality driveways and patios throughout Nottingham and up to 50 miles beyond. With over 15 years of personal hands-on experience and more than 100 completed projects, I understand what it means when a homeowner invests thousands into their property. You need to trust who you’re hiring. That’s why we put our name and our faces on every job. We’re visible, accountable, and proud to stand by our work. We’re a family-run business with family values, grounded in our Christian faith, and we treat every home with the same care and respect we’d give our own. No salesmen, no gimmicks—just honest, skilled workmanship backed by a 7-year guarantee. If you’re looking for a driveway or patio built to the highest standard, with a company that values trust, craftsmanship, and relationships, we’d be honoured to speak with you.

Latest homeowner review

Reviewed by Andrew on 8/3/2023

Didnt turn up to quote twice. Then only wanted to do the part of the job not requiring planning approval. Tried to talk me into getting the work done then putting in the drop kerb at a later date (pointless as I still wouldnt have any legal access to the drive!) not that I had any confidence in him returning to do the 2nd part anyway. Would not hire this company.

Bespoke Building

Cavity Wall Insulation in Porthmadog

Latest homeowner review

Reviewed by Roxy on 6/5/2024

Terrible experience all around. First bathroom was finished 2 weeks behind schedule and left with a leaking shower and lots of snags (messy grouting, misaligned taps, uneven tiles, etc). Second bathroom was ripped out and left unfinished because he had an accident (different stories) and no backup crew. Then, came back to fix snags from first bathroom but left loads undone/incomplete and, when confronted, he accused me of wanting to hold on to £200 for nearly a £20,000 bathroom project.

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build a wall

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New Extractor & wall removal

I have a bathroom downstairs and NOT on an external wall. I need to get one fitted ASAP by any means necessary. I also have an internal non load...

Reconfiguration / Renovation...

Unsure on budget to be honest, but have scheduled out the work, if interested. Quote labour only - either will supply materials, or have account at...

Room(s) to be in the...

Room(s) to be in the conversion: 1 x bathroom, 1 x bedroom Garage conversion to bedroom and bathroom I'm not sure if planning permission is...

New kitchen, bathroom, address...

New kitchen, bathroom, address damp, new radiators and piping, plastering etc

utility room and bifold door...

The utility room will be an extension of a single storey porch with a slate roof, it is 1.75m wide and will be 2.5 metres long, and include a velux...

New Extractor & wall removal

I have a bathroom downstairs and NOT on an external wall. I need to get an extractor fitted ASAP by any means necessary. I also have an internal non...

Reconfiguration / Renovation...

Reconfiguration / Renovation Services required: bathroom installation, flooring, plastering / plasterboarding, plumbing, tiling - floors, tiling -...

Size of extension: 2 rooms...

Size of extension: 2 rooms Height of extension: 1 floor Room(s) to be in the extension: bathroom, bedroom(s) Its in peysflog in porthmadog I'm...

repair an old barn for...

repair damaged walls and make sound

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  1. Create a job - it's free

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  2. Get quotes

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  3. Check ratings

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  4. Pick a tradesperson

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  5. Job done

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

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