Boiler Service
in Radlett

Servicing for the whole heating system in larger Radlett homes: the boiler, the unvented cylinder, the zones and the controls, checked together on one visit. Gas Safe registered engineers.

07342 171269 Get a Free Quote

Boiler Servicing Covering WD7

Servicing the Whole System

In a large Radlett house, the boiler is only one part of the heating. There is usually an unvented cylinder storing hot water at mains pressure, several heating zones with their own valves and pumps, and often smart controls tying it all together. Servicing the boiler alone leaves most of that unchecked.

Our system service covers the boiler, the yearly safety check on the unvented cylinder, and a look at the zone valves, pumps and controls. It means one visit, one set of findings and far fewer surprises when the heating goes on in October.

Smaller homes and flats near the station, usually with a combi, get a standard annual service. For breakdowns, see our boiler repair service, and for our other local work, the Radlett plumbing and heating page.

What a System Service Covers

These are the parts we check on a larger Radlett heating system.

Boiler Service: Combustion test, gas pressure, flue and safety devices, to the manufacturer’s schedule.
Unvented Cylinder Check: Temperature and pressure relief valves, expansion vessel and inlet controls tested.
Zone Valves: Each zone valve checked for sticking or slow operation.
Pumps: Circulating pumps checked for noise, flow and signs of wear.
Controls: Thermostats, programmers and smart controls checked so every zone responds correctly.

Signs Your System Needs a Service

If you notice any of these, book sooner rather than later.

A Zone Slow to Heat

One area lagging behind often points to a valve or pump starting to fail.

Water at the Tundish

Water running into the tundish by the cylinder means the safety system needs checking.

Hot Water Pressure Dropping

Weaker hot water from an unvented cylinder can point to a vessel or valve issue.

Over a Year Since the Last Service

Both boiler and cylinder should be checked every year.

Boiler and System Servicing in Radlett

For large multi-zone homes and smaller properties across WD7.

Annual Boiler Service

The boiler serviced to the manufacturer’s schedule.

Unvented Cylinder Service

The yearly safety check on your cylinder’s valves and vessel.

Full System Service

Boiler, cylinder, zones, pumps and controls checked on one visit.

Combi Servicing

Standard annual service for combis in flats and smaller homes.

Smart Controls Check

Thermostats and hubs checked to make sure every zone responds.

Repairs Found on Service

Any fault explained and priced before repair.

07342 171269 Get a Free Quote

How We Work

How a Radlett System Service Works

Tell Us About the System

Boiler type, cylinder and number of zones help us allow the right time.

Service Everything

We service the boiler and check the cylinder, zones, pumps and controls.

One Clear Report

You get our findings for the whole system and advice on anything to plan for.

Why Radlett Homeowners Book APH

Whole-system servicing by Gas Safe registered engineers, from a firm that has worked across Hertfordshire since 2009.

Fast response times

Straight down Watling Street from St Albans.

Qualified professionals

Boiler and unvented cylinder checked together.

Transparent Pricing

One report covering the whole system.

5-Star Customer Reviews

Consistently rated 5 stars by local customers.

07342 171269 Get a Free Quote

What Our Customers Say

Customers tell us they like having the whole system checked in one visit with a clear report afterwards.

      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