Boiler Service
in Hertford

Gas boiler servicing across Hertford with a firm focus on safety: combustion testing, flue checks and carbon monoxide advice. Gas Safe registered engineers.

07342 171269 Get a Free Quote

Gas Boiler Servicing for SG13 and SG14

Safety First on Every Service

A boiler that is not burning properly can produce carbon monoxide, which you cannot see or smell. That risk is higher with older boilers, and Hertford still has its share of floor-standing models and open-flued appliances in post-war and period homes. Every service we carry out includes a combustion test and a check of the flue and ventilation, so you know the boiler is burning safely.

We also check you have a working carbon monoxide alarm. Landlords in England have been required since 2022 to fit one in any room with a fixed combustion appliance such as a boiler, and we recommend every homeowner does the same.

We service mains gas boilers. If your home runs on oil or LPG, tell us when you call and we will let you know whether we can help. For breakdowns, see our boiler repair service, and for other work locally our Hertford plumbing and heating page.

The Safety Checks We Carry Out

These checks are at the heart of every Hertford service.

Combustion Analysis: Flue gas readings show whether the boiler is burning cleanly or producing too much carbon monoxide.
Flue Inspection: We check the flue is intact, secure and clear of obstructions.
Ventilation: Older open-flued boilers need the right ventilation. We check it is adequate and unobstructed.
Safety Devices: Flame failure and other safety controls are tested to confirm they work.
CO Alarm Check: We check you have a working carbon monoxide alarm near the boiler.

Warning Signs Not to Ignore

If you notice any of these, switch the boiler off and call us.

Yellow or Orange Flame

A healthy gas flame is blue. A lazy yellow flame can mean poor combustion.

Soot or Staining

Black marks around the boiler or flue are a warning sign.

CO Alarm Sounding

Open windows, leave the property and call the National Gas Emergency Service on 0800 111 999.

Headaches Indoors

Unexplained headaches or drowsiness that ease outside can be a sign of carbon monoxide.

Boiler Servicing Options in Hertford

For older and modern gas boilers across SG13 and SG14.

Annual Boiler Service

A full service with combustion testing and safety checks.

Older Boiler Service

Careful servicing of floor-standing and open-flued boilers, including ventilation checks.

Flue and Ventilation Check

Flue condition and room ventilation inspected for safe operation.

CO Safety Advice

Advice on carbon monoxide alarms and where to fit them.

Controls Check

Thermostats and timers tested and set sensibly.

Repairs Found on Service

Any fault explained and priced before repair.

07342 171269 Get a Free Quote

How We Work

Your Hertford Service Visit

Book In

Tell us the type and rough age of your boiler.

Service and Safety Test

We service the boiler and carry out combustion, flue and ventilation checks.

Clear Findings

We explain the results and anything that needs attention.

Why Hertford Homeowners Choose APH

Safety-led servicing from Gas Safe registered engineers, with a firm that has worked across Hertfordshire since 2009.

Fast response times

We reach Hertford along the A414.

Qualified professionals

Combustion testing on every service.

Transparent Pricing

Experienced with older open-flued boilers.

5-Star Customer Reviews

Consistently rated 5 stars by local customers.

07342 171269 Get a Free Quote

What Our Customers Say

People tell us they feel reassured when an engineer explains exactly what was checked and why.

      EXCELLENT  
   Based on 326 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Penny Smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really happy with the work carried out by Alban Plumbing and Heating. They fitted several new radiators in my home and the whole process was smooth from start to finish. They arrived on time, were friendly and professional, and took great care while working in the house.
The installation was completed to a high standard, everything was left clean and tidy, and the new radiators look fantastic and heat up perfectly. It's refreshing to find a company that is reliable, communicates well, and clearly takes pride in their work.
I wouldn't hesitate to use Alban Plumbing and Heating again and would happily recommend them to friends and family.
  
 
      Posted on Google  
   
   Inaam Mahmood 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really professional dealings, knows what he talking about does it all, wont leave you hanging like others and gave me good advice that's froom for my house and my pocket. Very hard to find people like this nowadays.
  
 
      Posted on Google  
   
   Thor Conor 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from Alban Plumbing and Heating Ltd. I contacted them for a plumbing and heating issue at my property in St Albans, and the whole experience was excellent from start to finish.

The engineer arrived on time, quickly identified the problem, and explained everything clearly before carrying out the work. The job was completed to a high standard, and everything was left clean and tidy afterwards.

What stood out most was their professionalism, reliability, and honest approach. Communication was great throughout, and the pricing was fair with no unexpected surprises.

I would highly recommend Alban Plumbing and Heating Ltd to anyone in St Albans and the surrounding areas looking for a trustworthy plumbing and heating company. I will definitely use them again in the future.
  
 
      Posted on Google  
   
   Omar Mohammed 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service from Alban Plumbing & Heating Ltd. Very professional, reliable, and efficient from start to finish. The work was completed to a high standard and everything was left clean and tidy afterwards. Communication was great throughout, and they arrived on time as promised. I would highly recommend them to anyone looking for trustworthy plumbing and heating
  
 
      Posted on Google  
   
   Alban City Dental 
 
 
 
 Trustindex verifies that the original source of the review is Google. Asif has done a great job looking after our plumbing and heating for several years now. He also recently attended in under an hour to fix an emergency leak that he and his son sorted with great efficiency allowing us to get back to work and continue operating with minimal disruption to our business and patients. He’s reasonably priced and friendly and I’m sure we will be using him for many years to come.  His 5 star status is well deserved.
  
 
      Posted on Google  
   
   Mr Afridi 
 
 
 
 Trustindex verifies that the original source of the review is Google. So helpful and has such a good heart. Fixed the stuff with no problem at all at of course the customer service is juts really good . Very friendly very kind I would definitely recommend
  
 
      Posted on Google  
   
   Xell 
 
 
 
 Trustindex verifies that the original source of the review is Google. amazing experience beautiful people
  
 
      Posted on Google  
   
   Parsa Yamin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fast, cheap and easy fix for my home, 100% recommend for all house problems