Home
Services
Gas Services
Hertfordshire
Welwyn Garden City
Non-Domestic Gas Safety Certificate

Filter Services

Non-Domestic Gas Safety Certificate in Welwyn Garden City, Hertfordshire

from £100

Check availability and compare prices.

4.7/5 from 1,303 verified reviews

Trustpilot

All Services

Energy Certificate

Electrical Certificate

Gas Services

Boiler Repair

Domestic Gas Safety Certificate

Non-Domestic Gas Safety Certificate

Boiler Service

Emergency Boiler Repair

Electrical Works

Cleaning Services

Handyman

Property Marketing

Inventory

Oven Cleaning

Electrical Callout

Fire Risk Assessment

Pest control

Chimney Sweep

Plumbing Works

Fire and Smoke Alarm Testing / Emergency Lighting Drain Testing

Emergency Lighting Testing

Retrofit

Electrical Vehicle Charger Installation

Moving Services

Fire Extinguisher Check

Energy Efficiency Improvements

Project Location

Select a county

Select a town

Find the best price now

Choose your property type:

Required field!

Domestic Non-Domestic (shops, offices, warehouses etc)

Choose your service:

Required field!

Gas Safety Certificate Boiler Service Special Offer - Boiler Service + Gas Certificate Boiler Repair Boiler Service & Repair

Number of Gas appliances:

Required field!

Meter & 1 appliance Meter & 2 appliances Meter & 3 appliances Meter & 4+ gas appliances

Required field!

Number of Gas appliances:

Required field!

Boiler service & 1 appliance Boiler service & 2 appliances Boiler service & 3 appliances Boiler service & 4+ gas appliances

Choose your service:

Required field!

Gas Certificate CP17 LPG Boiler Service Special Offer - Boiler Service + CP17 Special Offer - Boiler Service + LPG

Number of Gas appliances:

Required field!

Meter & 1 appliance Meter & 2 appliances Meter & 3 appliances Meter & 4+ appliances

Number of LPG appliances:

Required field!

1 LPG appliance 2 LPG appliances 3 LPG appliances 4+ LPG appliances

Number of Gas appliances:

Required field!

Boiler service & 1 appliance Boiler service & 2 appliances Boiler service & 3 appliances Boiler service & 4+ appliances

Number of LPG appliances:

Required field!

Boiler service & 1 appliance Boiler service & 2 appliances Boiler service & 3 appliances Boiler service & 4+ appliances

Are any of your gas appliances a gas fire?

Required field!

Yes No

Does it have backboiler?

Required field!

Yes No

Required field!

Is there any issue with your boiler?

Required field!

Yes No

Which of the following best describes your issue?

Required field!

No HeatingNo Hot WaterBoiler Making Noises (kettling effect)Display error codesLow pressurePump, valves & burner problemsBoiler ignition faultsFaulty circuit boards (PCB)Timer & programmer troubleBoiler LeakingThermostat issuesOther

The Engineer will diagnose the problem, and carry out repairs, all within the hour. If additional parts & labour are required, they will be quoted separately onsite.

We’re sorry, you do not qualify for the government grant.

Continue and find the best installation prices in the UK.

Congrats! You qualify for a government grant!

You could save up to £350 with a government grant for your charger.

19 results

Property by AK

4.7

138

Hiya, Property by AK welcomes you, we are a team of reg...Read Moreistered gas engineers & electricians over 7 years experience in heating & and electrical work, feel free to reach out and we can help! Hope to see you soon! Show less

404 hiresACCRED No: 663775+1

Suresh is excellent, highly recommended!

Keith Munemo

4.9

Friendly and reliable Gas Engineer for your servicing n...Read Moreeeds and Landlord Gas Safety Checks, same day certificates. Boilers, Cookers and Fires covered. Show less

137 hiresSame day Gas Safety

Polite and good explanation of what was happening

Find the service provider for the job!

Get instant prices and book a date & time that suits you!

Kazim Hussain shah

4.6

581

Gas engineer land lord certificate, boiler and gas Hob ...Read Morealso can do insulation of boiler and Radator vented cylinders I can also serivce heat pumps Show less

2505 hiresACCRED No: 935264+1

Nothing all good

THR Gas and Heating Solutions

4.8

Fully accredited Gas Safe engineers with years experien...Read Morece with British Gas as lead technical support engineer.Install, upgrade, service and repair all types of gas appliances and central heating.FREE quotation provided for a new boiler on request and up to 10 years guarantee on all boiler installs.System upgrades such as smart controls and designer radiators.Landlord gas safety certificatesCooker/Hob or Fire installation or service/repairFriendly, knowledgeable, trustworthy, reliable, gentle, Non-smoker/alcoholic, and always happy to offer advice. Please inquire now to get your boiler service/repair or replace.All work is under up to 1 year guarantee (T&C apply). £5 million liability insurance cover. Show less

161 hiresSame day Gas Safety

Excellent service at a very reasonable price.

Mubbashar Ali

As a qualified Gas Safety Specialist, I provide profess...Read Moreional gas safety inspections, servicing, and certification for residential properties. With extensive knowledge of current UK gas safety regulations and industry best practices, I am committed to ensuring every installation is safe, compliant, and operating efficiently. I specialise in Gas Safety Certificates (CP12), boiler service, appliance safety checks, and landlord compliance services. My approach is built on reliability, attention to detail, and exceptional customer service, giving homeowners and landlords complete confidence that their gas systems meet the highest safety standards. Dedicated to maintaining quality workmanship and protecting lives through safe gas practices, I take pride in delivering accurate assessments, clear advice, and prompt, professional service on every job. Show less

4 hires

Dion White

4.3

As a dedicated Gas Specialist, I provide safe, reliable...Read More, and fully compliant gas engineering services for residential properties. With extensive experience in gas safety inspections and boiler servicing, I am committed to delivering the highest standards of workmanship while ensuring every property meets current safety regulations. I specialise in CP12 Gas Safety Certificates and boiler maintenance. My approach is built on professionalism, technical expertise, and exceptional customer service, ensuring every job is completed efficiently, safely, and with attention to detail. Whether working with homeowners or landlords, my goal is to provide dependable, cost-effective solutions that prioritise safety, compliance, and customer satisfaction. Show less

23 hires

A true professional

Kevin Taylor

Experienced and reliable Gas Certificates Specialist pr...Read Moreoviding professional gas safety and certification services for domestic properties. Skilled in carrying out gas safety checks, inspections, and certification for gas appliances and installations, with a strong focus on accuracy, safety, and compliance with relevant regulations. Committed to providing a thorough and dependable service, ensuring that all necessary checks are completed carefully and that certificates are prepared accurately following the inspection. I work professionally and efficiently, with clear communication and attention to detail throughout every appointment. Whether you require a Gas Safety Certificate, CP12, appliance checks, or other gas certification services, you can expect a reliable, punctual, and customer-focused service completed to a high professional standard. Show less

11 hires

Find the service provider for the job!

Get instant prices and book a date & time that suits you!

Abdul Hai

4.7

242

We are an approved professional electrician & gas engin...Read Moreeers with over 10 years experience, working in commercial and domestic installations. Hatley Gas & Electrical Services offers high-quality work at reasonable prices. We specialise in electrical & gas inspections, all inspections are completed with minimal disruption to the customer What we offer In electrical: 1. Emergency call out - We take urgent calls for emergencies. 2. Electrical domestic and commercial rewiring- Free quotations and offer very reasonable price. 3.Electrical installation conditional report (EICR) domestic and commercial- We have a great deal of experience to provide certification after inspection and testing. 4. Fuse box upgrade- We comply with the current regulation BS-7671. 5. Commercial and domestic fire alarms- We offer different types of fire alarm installations and certifications. 6. Electrical installations - We provide expert advice and install as per customer need What we offer in gas appliances: 1. Emergency call outs - Gas certificates for landlord properties - 2. Gas boiler installation - 3. Gas boiler repair - 4. Plumbing issues - 5. Gas leaks - 6. Gas boiler & cooker servicing Show less

1018 hiresACCRED No: 922358

Abdul was brilliant. Have kept his number and will defi...Read Morenatly be using him again for all me electrical and gas work Show less

Arminas Janciauskas

4.9

Gas safe engineer covering Harlow and surrounding areas...Read More Show less

230 hiresACCRED No: 943378+1

Very efficient

Jac Plumbing & Heating Services Ltd

4.9

I have been a Gas-Safe Registered Engineer for over the...Read More years with excellent experience working, quickly, efficiently, and reliably with Boiler servicing, Landlord Certifications, Boiler Fault diagnosis, and Repairs. I go above and beyond to reach specific needs. I want our customers to be satisfied with our work, which is why we provide open communication channels every step of the way. Show less

46 hiresACCRED No: 655591+1

We got an error message on our boiler, so went online a...Read Morend came across Jac on the MyConstructor site. Very simple process, with great pricing, booked it online for the next day, job done! Brilliant! Will definitely use them again. Show less

EPC Specialist

4.7

Gas ,EPC, Electrical Certificates Experienced domestic...Read More electrician carrying all types of domestic electrical installations and electrical inspection and testing (EICR) Show less

363 hiresACCRED No: 636076

Very happy with the work carried out. It was completed ...Read Moreahead of schedule and exactly to my specifications. Will use again. Show less

Certs & Repair

4.1

Qualified EICR engineer with extensive experience in in...Read Morespecting, testing, and certifying electrical installations for safety and compliance. I specialize in conducting Electrical Installation Condition Reports (EICRs) for residential properties, ensuring all systems meet current regulations and standards. With a strong attention to detail and a commitment to safety, I identify potential hazards, provide clear recommendations, and help clients maintain reliable and compliant electrical systems. Show less

91 hires

Good

Find the service provider for the job!

Get instant prices and book a date & time that suits you!

Pedro Mcleod

4.8

Certified domestic Gas Safe engineer specializing in CP...Read More12 Gas Safety Inspections and Landlord Certificates. Experienced in ensuring compliance, and delivering reliable, safety-focused solutions for residential properties. Show less

6 hires

Great

JA Safety Certificates

4.7

Providing all Landlord certificates under one roof.

166 hiresACCRED No: 949943

I'm pleased with his personality and the service. He di...Read Mored the job according as I accepted Show less

Muhammad Imran

5.0

Boiler installation, boiler repair, cooker & hob instal...Read Morelation, Landlord safety certificate, central heating, Radiator installation, plumbing Show less

16 hiresACCRED No: Proficient Gas Heating & plumbing

mohomad imran made the gas service in my house very suc...Read Morecessful. When I was looking for gas service on the internet, I saw the website myconstructor.co.uk. When you talk to other private companies, they are very expensive. My house heater and hot water did not work. All this was charged under 60 pounds. Muhammad Imran is a good gas service expert. thanks for your great work Show less

PENTHOU53 Ltd

4.9

We take great pride in our workmanship which is of the ...Read Morehighest standard, we focus on offering a quality service maintaining the safety and reliability of your gas boiler and your central heating system. Show less

132 hiresACCRED No: 629946+1

Excellent.

Robbie Thomas

5.0

Hi, I'm a gas safe engineer,boiler installation, boile...Read Morer repairs, boiler certification, plumber, repair and install white goods appliances and many more services Show less

5 hiresACCRED No: Aia contractors ltd

Robbie was excellent and provided a good service. Highl...Read Morey recommended Show less

Find the service provider for the job!

Get instant prices and book a date & time that suits you!

zafar mahmood

4.7

At ZMS Services, we specialize in comprehensive heating...Read More and plumbing solutions with a focus on safety and efficiency. As a Gas Safe Registered specialist, I provide a wide range of essential services including: Emergency Call-Outs & Repairs Gas Safety Certificates (Landlord Checks) Boiler Installations & Heating System Maintenance Power Flushing & Fault Finding General Plumbing & Green Energy Solutions With a focus on quality workmanship and clear communication, ZMS Services ensures your home stays warm and your water stays flowing. Professional, reliable, and always ready to help. Show less

6 hires

Khalid Hussein

4.9

Experienced gas services technician specializing in ins...Read Moretallation, maintenance, and safety compliance. Committed to reliable, efficient, and safe solutions for residential and commercial clients. Show less

3 hiresACCRED No: 5780693

Excellent

Accredited & Trusted Service Providers

Trustpilot

11220

Reviews

40728

Hires

Frederick G.

5.0

Miles was elite! Exceptional customer service and made sure the job was thorough and done right.Would highly recommend Miles.

October 08, 2026 Verified

Les W.

5.0

Tony was very polite and professional. Clean tidy and pleasant to deal with.

October 08, 2026 Verified

Andrew J.

5.0

Called me to update me where he was he was very respectful and did the work perfectly would recommend him anytime

October 08, 2026 Verified

Laurence J.

5.0

Great service from Kai S ,will use myconstructor again

October 07, 2026 Verified

Dragisa B.

5.0

Quick and straightforward Gas Safe Certificate renewal. I liked that Abul talked me through what he was doing. Highly recommended!

October 07, 2026 Verified

Stuart H.

5.0

Excellent

October 07, 2026 Verified

Imre S.

5.0

Very polite and chatty person, show up on the right time, did a quick job also advising few things for my future plans.. he is just amazing

October 07, 2026 Verified

Paul C.

5.0

Very good it was quick and tidy ,thanks

October 06, 2026 Verified

Julie H.

5.0

Really good experience!

October 06, 2026 Verified

Pearl C.

5.0

Excellent service, polite and professional. Exceeded expectations by providing a very thorough and informative assessment. Highly recommend.

October 06, 2026 Verified

James P.

5.0

Helpful and flexible

October 05, 2026 Verified

Diana D.

5.0

Reliable and efficient. Highly recommend.

October 05, 2026 Verified

Tracy D.

5.0

5* service

October 05, 2026 Verified

Joshua C.

5.0

Very good

October 04, 2026 Verified

Daisy Y.

5.0

Paul is very professional and helpful, will definately use again. Thank you

October 04, 2026 Verified

David T.

5.0

Everything was brilliant he left no mess at all.he was very polite and filled in our book.he did not leave it until we were satisfied.would definitely use him again.

October 03, 2026 Verified

Jagadish S.

5.0

Highly recommended

October 03, 2026 Verified

Mohammad K.

5.0

Excellent

October 02, 2026 Verified

RAY P.

5.0

Keith was very professional and friendly would highly recommend