What it is
We install new and replacement boilers and carry out servicing, upkeep and repairs on existing boilers for commercial and domestic properties. Every gas job is carried out by our Gas Safe registered team.
Reliable heat and hot water, installed and maintained by a Gas Safe registered team. Clear quotes with warranty terms set out up front.

20 years
Isaac's Legionella experience
HSE ACoP L8
compliant assessments
Gas Safe
registered
£5m
public liability cover
Service overview
We install new and replacement boilers and carry out servicing, upkeep and repairs on existing boilers for commercial and domestic properties. Every gas job is carried out by our Gas Safe registered team.
Homeowners, landlords, schools, golf clubs, offices and other commercial premises that need dependable heating and hot water.
When your boiler is old, unreliable or inefficient; when it is due for a service; when it breaks down; or when you are refurbishing or changing how the building is heated.
Gas work must be carried out by a Gas Safe registered engineer. We are also water hygiene specialists, so we understand how hot water temperatures affect Legionella control. Boiler installations come with a warranty, with terms set out at quote stage, and we carry £5 million public liability insurance.
The risk
Boilers that are not serviced lose efficiency, use more fuel and are more likely to break down, often when you need them most.
A poorly maintained gas boiler can be unsafe. Unreliable hot water temperatures can also undermine Legionella control in commercial buildings. A breakdown can leave a building without heating or hot water.
Service requirements
The scope, schedule, checks and any reporting or handover requirements are agreed for your property at quote stage.
We assess your current system and heating and hot water needs.
A clear quote including warranty terms for installations.
Our Gas Safe registered team carries out the work.
Installation, commissioning and handover requirements are confirmed for your system.
We explain the system and recommend ongoing maintenance.
Benefits
Carried out by a Gas Safe registered team.
Warranty on boiler installations, set out at quote stage.
Regular maintenance reduces breakdowns.
A well-maintained boiler wastes less fuel.
Temperature control that supports Legionella compliance.
£5 million public liability insurance.
In detail
Whether it is a new system or keeping an existing one running, here is what we offer.
Covering Water hygiene in Luton, Water hygiene in St Albans, Water hygiene in Dunstable, Water hygiene in Harpenden, Water hygiene in Hemel Hempstead, Water hygiene in Milton Keynes, Water hygiene in Bedfordshire, Water hygiene in Hertfordshire, Water hygiene in Buckinghamshire, Water hygiene in Northamptonshire, Water hygiene in Cambridgeshire and nationwide.
We help you choose a boiler suited to your property and hot water demand, with installation and commissioning requirements confirmed for your system.
Regular servicing keeps your boiler safe, efficient and reliable, and helps spot problems early.
We diagnose and repair faults on existing boilers and heating controls.
In commercial buildings, stored hot water needs to be kept at temperatures that control Legionella. We consider this when installing or adjusting systems.
From family homes and rental properties to schools, golf clubs and offices, we tailor the system to how the building is used.
Guide
A boiler is one of the most important pieces of equipment in any building. It provides heating, and in many systems hot water too. Choosing the right one, installing it properly and looking after it keeps it safe, efficient and reliable for years.
The right boiler depends on the size of the property, how much hot water is used and when, and the existing system. Combination boilers heat water on demand and suit many smaller homes. System and regular boilers work with a hot water cylinder and suit properties with higher hot water demand. In commercial buildings, the system often needs to be sized for peak use, such as changing rooms after a match at a golf club or a busy school day.
Installation must be carried out by a Gas Safe registered engineer. That is a legal requirement for gas work in the UK, and it protects you and the people using the building. Our team is Gas Safe registered and installation, commissioning and handover requirements are confirmed for your system. Boiler installations come with a warranty, with terms set out clearly at quote stage.
Regular servicing keeps a boiler working safely and efficiently. During a service, components are checked, cleaned and adjusted, and any early signs of wear are flagged before they turn into a breakdown. Landlords also have legal obligations around gas safety in rental properties, so keeping servicing up to date matters.
There is also a water hygiene angle. In buildings with stored hot water, the boiler and cylinder need to keep water hot enough to control Legionella. As water hygiene specialists, we consider this when installing or adjusting heating and hot water systems, alongside the heating requirements.
We install, service and repair boilers across Luton, Bedfordshire, Hertfordshire, Milton Keynes and the surrounding counties, for both commercial and domestic clients, 8am to 8pm, seven days a week.
Homeowners want reliable heating and hot water at a sensible running cost. We help you choose a boiler that suits your home and how your household uses hot water, then install it to a high standard.
Landlords need boilers that are safe, reliable and easy to maintain between tenants. Regular servicing helps keep rental properties compliant and reduces breakdowns that lead to tenant complaints.
Schools, golf clubs and offices need heating and hot water that cope with peak demand. We consider usage patterns, stored hot water temperatures and Legionella control when installing or adjusting systems.
Whatever the property, every gas job is carried out by our Gas Safe registered team, backed by £5 million public liability insurance and a warranty on installations, with terms stated in your quote.
If your boiler is old, unreliable or due a service, a free site visit is the easiest way to understand your options and get a clear written quote.
We also explain how to get the best from your new or serviced boiler, from setting controls sensibly to spotting early warning signs such as pressure loss, unusual noises or erratic hot water, so small problems are dealt with before they become breakdowns.
FAQs
8am – 8pm, Monday – Sunday
It depends on the boiler and the installation. We provide a detailed quotation after discussing the installation at an initial site visit.
Yes. Initial site visits and Legionella quotes are free. We provide detailed quotations.
Yes. All gas work is carried out by our Gas Safe registered team.
Yes. Warranty terms are set out clearly in your quote.
We recommend servicing at least once a year to keep it safe and efficient.
We provide boiler installation and maintenance for both commercial and domestic properties. We'll confirm suitability for your system at the site visit.
Yes, along with Milton Keynes, Buckinghamshire, Northamptonshire and Cambridgeshire.
It depends on the type of boiler and whether the system is being changed. We'll give you an expected timescale with your quote.
In systems with stored hot water, water needs to be kept hot enough to control Legionella. We consider this when installing or adjusting boilers and hot water systems.
We're available 8am to 8pm, seven days a week. Call 07398 411881 to discuss your enquiry and availability.
Free site visit
Book your free site visit for boiler installation & maintenance. Initial site visits are free; the proposed work and terms are set out in a detailed quotation.
07398 411881isaac@imwhs.com · 8am – 8pm, Monday – Sunday