Conversion Specialists in Welwyn Garden City

Name: Conversion Specialist
Brand: MyBuilder
SKU: conversions-specialist
Rating: 5 (31 reviews)

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Some of our top rated conversion specialists in Welwyn Garden City

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RV DEVELOPMENTS
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
An established and proven family business who have recently partnered with Tf builders to become Thomas Richards. Still working to the highest standards. Specialising in new build developments Extensions and conversions
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Latest review:
Extensions- 1 Jun 2012
Great job. Reliable and high quality work.
D & C Kitchen Installations Limited
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
We undertake full or part refurbishment or existing and new build works. We specialise in kitchen installations and building alterations. We can provide a full team of specialist to complete all building works from design to completion. We are a registered Ltd company, fully insured and members of BiKBBi and only use registered contractors.
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Latest review:
Ciaran ripped out my old kitchen and installed a new one and at the same time adding a door to the garage. Ciaran’s workmanship is second to none, his eye for detail and knowledge is awesome. Ciaran is a true very polite and all together a sound tradesmen. Always here early and put in the hours. I would absolutely recommend Ciaran and his work it was well worth the wait. Thank you.
PWD CONSTRUCTION LTD
Rating: 4.9 out of 5
Conversion Specialist in Welwyn Garden City
I established my business to meet the needs of homeowners looking for skilled and qualified tradesmen that put trust at the top of their requirements. From small jobs to large extensions and landscaping we can help to make your property dreams come true. Money back guarantees offered.
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Latest review:
Conversions - General- 1 Dec 2025
Paul was very knowledgeable and talked us through optionality and step by step of what we would do. His work is of a good standard and we are very happy with the result.
Concept Conversions
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Concept Conversions is a specialist conversion company covering loft,garage and home conversions based in Stevenage with over 20 years of knowledge and experience in a multitude of skills including general building,plastering screeding,painting & decorating and carpentry and we only use fully qualified electricians and plumbers for all our projects. Taking your project from Concept To Completion
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Latest review:
Conversions - General- 22 Sep 2021
100% positive experience. Works completed to an extremely high standard with excellent attention to detail - delighted with the end product, has surpassed expectations. Jay and Don are very friendly guys, and we will certainly be asking them to quote again for additional works in the future. Couldn't recommend CGC more highly!
D Bird carpentry and building LTD
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Hi were Dbird Carpentry & Building we are a family run company by myself Daniel and my brother Ellis. We take pride and love what we do! We will help you every step of the way through your project no matter the size.
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Latest review:
Conversions - General- 21 Jun 2022
D Bird Carpentry completed the works on time and to a high standard. Dan and his team were a pleasure to work with and I would be happy to work with them again.
Casa Bespoke LTD
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Hi, I’m the owner of Casa Bespoke, and I’ve built my reputation on doing things properly. Carpentry has been my craft for years, and I take real pride in delivering work that’s neat, reliable, and built to last. I specialise in 1st and 2nd fix carpentry, along with a range of bespoke services that help turn a house into a home. Whether it’s fitting new doors, installing skirting and architrave, building media walls, or creating outbuildings and garden rooms, my focus is always the same — good communication, honest advice, and attention to detail in every job. I understand that letting someone into your home is a big deal. That’s why I work cleanly, respectfully, and keep you updated at each stage. To give you full confidence in my workmanship, I can also provide an extensive portfolio of previous projects along with references from past clients, so you can see the level of quality and care I put into every job. From small touches to full refurbishments, I’m here to help bring your ideas to life and make the experience as smooth as possible. If you’re looking for quality workmanship from someone who genuinely cares about the final result, I’d be happy to chat and provide a free, no-obligation quote.
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Latest review:
Casa Bespoke LTD transformed our patio with timber framing and composite decking, working tirelessly in the most appalling weather conditions, whilst showing incredible dedication. We found them to be honest and hardworking. They were punctual, reliable and respectful of our property. We trusted them completely, and are so happy with the finished result. It is a real transformation of our outdoor space, and the quality of their craftsmanship is clear in every detail. We were so impressed with their professionalism and integrity that we have already asked them back for more work, and have no hesitation in recommending them.
ABL Building & plumbing solutions
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
We are a family run business, take pride in our work we carry out. We cover all aspects of building works from hanging a door to a complete new build house.
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Latest review:
Conversions - General- 8 Apr 2022
Brilliant, tidy, punctual, experienced, everything we wanted for the job at hand. Thank you Alan and team for the great work you completed
FPA PROPERTY SERVICES LTD
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Here at FPA property Services LTD we pride ourselves on the prefect job, our company has grown in size due to our hard work & our outstanding standard of finish. we offer a bespoken services for any size job from the design stage to the complete build. We are proud members of the FEDERATION OF MASTER BUILDER & TRUSTMARK. The only Government Endorsed Quality Scheme. Our services cover commercial & domestic projects. We can take on any size job from a rental touch up to a complete new build.
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Latest review:
Conversions - General- 4 Feb 2019
Frankie and his team were amazing. They were very professional and hard working. He kept me informed throughout the project and was very thorough with his work. A friendly team who couldn't do enough for us. I am so happy and impressed with the work done that I have already booked him for my next project! I would 100% recommend them.
Phi Architectural Services Ltd.
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Phi Architectural Services Ltd. specializes in providing architectural, structural and project management services from small to big sized residential projects. With more than 12 years of experience and more than 500 projects ranging from refurbishment to new build houses and flats, the firm also have its own team of sub-consultants and contractors.
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Latest review:
CAD / Drawings- 6 Mar 2022
Very helpful architect. Needed a little nudge occasionally due to busy season, but the work is delivered in time and to a high standard. I'm happy with the result.
Answers Now Ltd
Rating: 4.9 out of 5
Conversion Specialist in Welwyn Garden City
Hi. I'm Nick and I run a small team of friendly, experienced contractors. Over the last 12 years we've carried out a vast number of kitchen & bathroom renovations and larger extension. In addition to general handyman work, we also focus on damp eradication & timber treatment, i.e. woodworm. Contact us and we'll carry out a free survey, develop a clear action plan and then do everything possible to sort out your problems. Please check out our feedback & photos. Thank You
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Latest review:
Conversions - General- 23 May 2024
Nick did a fantastic job. Extremely happy with the result. Great communication. Worked long hours to get job completed. Very efficient and happy to complete all snagging at the end. Good quote too. I would definitely use Nick again and highly recommend. Job included a wall coming down, plastering, electrical and new radiator. Multi-talented and trustworthy
Merchant Construction
Rating: 4.7 out of 5
Conversion Specialist in Welwyn Garden City
I do general building , bricklaying , patios drives , roofing , fencing ,mastic work , extensions and complete houses. Also commercial builds and equestrian buildings , swimming pools , decking , ornamental ponds. I have been in the building trade for 46years . I left school in 1976 and I went to college for four years where I studied brickwork. I can honestly say that in all of my years in the trade . I take great pride in my work
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Latest review:
Landscaping- 26 Feb 2025
Job price agreed and start date- then he went “ghost” After some time we connected and he explained a family bereavement was the reason. Shame it had to end this way
Ian Warren Brickwork
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
Bricklayer by trade 30 years We do extensions, alterations, loft conversions, orangries all types of roofing we also do new cement board cladding and all types of fencing
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Latest review:
Bricklaying- 4 Mar 2021
If I could give more stars I would. Ians attitude to work and workmanship is outstanding, I'm a building my self and won't be looking for another bricklayer anytime soon.. Amazing work really impressed highly recommended.
ASG Developments - Herts
No reviews yet
Conversion Specialist in Welwyn Garden City
Free Architectural Plans Included with every build. Crafting timeless spaces with precision, passion, and purpose. Welcome to ASG, where visionary architecture meets exceptional construction. From concept to completion, we bring your ideas to life with innovative design, sustainable practices, and uncompromising craftsmanship. Whether you're planning a custom home, commercial space, or renovation, we deliver spaces that reflect your vision — beautifully and efficiently.
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Craig allan carpentry.
Rating: 5 out of 5
Conversion Specialist in Welwyn Garden City
I am a carpenter with 8 years experience, After subcontracting for many years I have decided to take my experience and start working for my self. I have extensive knowledge in the following areas. flooring. Skirting and architrave. Fitting doors. Bespoke wardrobes and cabinets. kitchen fitting. Structural Framework. Roof construction. I am fully insured and happy to discuss all options available to you as my customer from budget to design.
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Latest review:
Kitchen Fitting- 25 Sep 2022
Two lovely young men who did an excellent job and went out of their way to do little extras , would recommend Craig and his partner 100% and any future jobs i might have they will be the first I go to , thank you for a job very well done 👍👍👍
Pat Mcgeough
Rating: 4.9 out of 5
Conversion Specialist in Welwyn Garden City
McGeough & Sons Ltd is a family run business based in Bedfordshire. I am a time served carpenter with 27 years extensive experience in all aspects of refurbishments and building. Fully insured, contact us for a non obligated quote or advice
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Latest review:
Conversions - General- 4 Jan 2026
Pat was a pleasure to deal with from beginning to end he had everything covered and made the whole project a seamless experience. He provided me with a professional quote and had the patience to deal with my questions. He started the project on time svd no thing was too much trouble, when I needed a roofer to fix some issues with a leak he had someone on the job within a day. He handled every aspect of my garage conversion effortlessly and had the job finished on time right before Xmas. Would 100% use Pat again. Great guy who also knows good trades people. Thanks Pat.
DCL Plumbing and Heating
Rating: 4.8 out of 5
Conversion Specialist in Welwyn Garden City
I have over 18 years of experience in this sector and hold all relevant qualifications and I am fully insured. I am able to provide solutions for common plumbing issues from taps, toilets, traps & also solutions for more complex problems such as boiler breakdowns & central heating fault finding service & repair as well as full central heating installation, boiler installation (backed with 10 year warranty’s on all boiler installs), radiator installation, boiler & hot water cylinder servicing
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Latest review:
Gas Work- 8 Dec 2024
Lee and his co worker came when they supposed to come pricing was clear and installed the new boiler efficiently and installed the new radiators very well very please with the work they did highly recommend then and they made sure the new system was working and functional before leaving

Top rated Conversion Specialists

Our Conversion Specialists in Welwyn Garden City, are rated 5 out of 5 based on 31 reviews from customers like you.

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What types of services are offered by conversion specialists in Welwyn Garden City?

Conversion specialists are the people you need to make underused areas of your home practical and fit for purpose.

If you need to increase your living space and improve its functionality, a conversion specialist can help with:

Loft conversions: Turning attics into bedrooms, offices, or storage spaces.
Garage conversions: Transforming garages into living areas, studios, or utility rooms.
Basement conversions: Creating usable living spaces in previously underutilised basements.
Barn and outbuilding conversions: Updating detached buildings for modern use, such as guest accommodation or home offices.
Internal reconfigurations: Knocking through walls, creating open-plan layouts, or combining rooms.
Commercial-to-residential conversions: Adapting offices or shops into homes.

No matter the tasks of your conversion project, MyBuilder makes it easy to find local conversion specialists near you. Simply post your job and receive responses from conversion professionals in Welwyn Garden City who are available to take on your project.

Costs of conversions in Welwyn Garden City

Conversion costs in Welwyn Garden City vary widely depending on the type of work, the size of the space, and the materials involved.

As a rough guide, here’s what you can expect to pay for different conversion tasks:

Loft conversions costs: £40,000–£65,000+
Garage conversion costs: £15,000–£25,000
Basement conversion costs: £60,000–£120,000+
Barn and outbuilding conversions: £30,000–£80,000+
Internal reconfigurations: £5,000–£20,000
Commercial-to-residential conversions: £50,000–£150,000+
Hourly labour rate: £20–£35 per hour
Daily labour rate: £160–£280 per day
Demolition and removal costs: £500–£5,000+

Note: Material costs can vary widely depending on the type of conversion and the finishes you choose. For example, structural steel, roofing, and high-spec windows can increase costs significantly, while insulation or interior finishes may be more moderate. Discuss this ahead of time with any potential conversion specialists to ensure you get the right quote.

If you’re seriously considering a conversion for your home, Welwyn Garden City conversion specialists will be the best source of accurate pricing information. Find your preferred conversion specialists near you to ask for a quote tailored to your project specifics.

Find a conversions specialist in Welwyn Garden City with MyBuilder

Converting part of your home is a big investment, so finding the right tradesperson is key to ensuring a smooth and successful project. MyBuilder connects you with verified conversion specialists in Welwyn Garden City, giving you control over who you hire and how you manage your project.

Step 1: Post your job on MyBuilder for free

Start by describing the type of conversion you need on our platform. Give as much detail as you can! You can also include images to give tradespeople a better idea of the work you would like completing. Once posted, your job is shared with conversion specialists in Welwyn Garden City.

Step 2: Review and contact Welwyn Garden City conversion specialists

You can browse company profiles to find the right Welwyn Garden City conversion specialist for you, check out previous work, and read genuine customer feedback. Once you’ve decided on some potential conversion specialists, you can reach out to discuss the project details further and request detailed, itemised quotes that outline labour, materials, and timelines, helping you compare options clearly before making a decision.

Step 3: Make your final choice

Now that you’ve gathered the information and received detailed quotes from Welwyn Garden City conversion specialists, you can easily make your final choice in just a few clicks.

By comparing prices, timelines, and approaches, you stay fully in control of who you hire and how your conversion is carried out. Once you’ve selected the right tradesperson for your project, you can arrange a suitable date and time, and get your conversion underway!

MyBuilder verifies each tradesperson when they join by checking ID, company registration, and relevant qualifications for regulated industries. Post your conversion job on MyBuilder today and start receiving responses from interested conversion specialists in Welwyn Garden City.

FAQs: Questions about Welwyn Garden City conversions

How do I find available conversion specialists in Welwyn Garden City?

You can find local conversion specialists through platforms like MyBuilder, where you can compare profiles, reviews, and quotes to help you choose the right professional for your project.

How long does a typical home conversion take?

Most home conversions take between 4 and 12 weeks, depending on the size, complexity, and type of project. Larger structural changes or regulatory approvals can take longer.

Are conversion specialists required to have insurance in Welwyn Garden City?

Yes, reputable conversion specialists typically hold public liability insurance to cover potential damage or accidents during the project. Some may also carry employer’s liability or professional indemnity insurance, depending on the work.

Do conversion specialists in Welwyn Garden City offer warranties or guarantees on their work?

Many conversion specialists offer warranties or guarantees for workmanship and structural integrity, though the terms and duration vary by company. Always confirm what’s included before hiring.

Can a conversion specialist in Welwyn Garden City help with planning permission and building regulations?

Yes, many conversion specialists can advise on planning permissions, submit applications, and ensure your project complies with building regulations, although some homeowners choose to handle these steps themselves.

How far in advance should I book a Welwyn Garden City conversion specialist?

It’s best to book at least 2–4 months in advance, especially during busy periods like spring and summer. Specialist conversions may require even longer lead times.

Can conversion specialists handle design as well as construction, or will I need an architect too?

Some conversion specialists offer design-and-build services, managing both stages of the project. For more complex conversions or structural changes, you may still need to involve an architect or structural engineer.