Frequently Asked Questions

Below you will find answers to many of the frequently asked questions we receive from our customers. If you can find the answer your looking for, please call us and we’ll happily answer you questions.

Gas Safe Approved

OFTEC Approved

Family Run Business

No Subcontractors

No Deposit

Up to 12 Years Guarantee

One Fixed Price

Next Day Installation

Quality Installations

Open 7days/week

10000+ happy customers


Getting a quote for a replacement boiler or other types of heating installations could not be easier when you choose The Boiler installation Specialists.

Fill out a quote request on our website or contact us via phone or email to speak to us direct, we are open 7 days/week. If you call and we’re busy, do leave us a voicemail and we will return your call as soon as possible.

We will ask you some questions about your home and existing system and then recommend some suitable packages that meets your needs.

If a survey is required we will arrange this free of charge with one of our lead engineers.

Your quote is fully comprehensive and will include the supply and installation of your new boiler or heating needs.

If you wish to supply additional items for us to install during your installation, this is possible too, just let us know and we will include this in your quote.

Accepting a quotation is a straightforward process. Simply reach out to our friendly customer support team and inform them of your decision to proceed. They will guide you through the necessary steps and provide any assistance required to accept the quotation for your desired service.

Once you have accepted a quotation, our team will contact you to schedule a convenient date and time for the installation. Our experienced engineers will arrive at your property and efficiently carry out the agreed-upon services. Throughout the process, we will ensure minimal disruption to your routine and maintain clear communication to address any questions or concerns you may have. Our goal is to provide a seamless and satisfactory experience from quotation acceptance to the successful completion of the installation.

On the day of installation we usually arrive between 08.00-08.30 however if you wish us to arrive earlier this is possible.

Our experienced in-house engineers will on arrival explain to you how the day will plan out.They will protect areas where they work and advise you when electrics or water needs to be switched off momentarily.

Once the installation is complete, our engineers will conduct thorough safety checks, test the system, and ensure proper functionality. They will also provide you with instructions on operating and maintaining your new boiler.

The installation process is carried out efficiently and professionally, with minimal disruption to your daily routine. 

On completion we will leave you with manuals & instructions and if you have any questions post-installation you can contact us at anytime.

The quote you receive from us for your boiler installation is fixed. This is why we always check things like, existing boiler location, flue locations and gas pipe size etc. 

Sometimes a existing installation might not meet current regulations and the new boiler installation may require some adjustments to be made to bring your installation up to current standards. This is why we always speak to customers directly rather than selling packages online. 

Once we received from you the information required we will provide you with your fixed price boiler replacement quote.

All information provided by customers seeking a boiler replacement quote from us is also always checked by a lead engineer.

We offer next day installation subject to availability.

This is why it is so important to let us know as soon as you are ready that you wish to accept our quote as availability changes all the time.

As we work for direct with the public we are in full control of our work which allows us to accommodate customers according to their needs.

Feel confident when you work with us, that you are in safe hands.

And this is why you should choose The Boiler Installation Specialists! We do not operate on a basis of keeping only to the easiest straight forward jobs.

We cater for all types of installation work, this can be a straight forward boiler replacement to a full system upgrade. 

If you are advised your requirements can’t be met by other companies it comes down to the skill set on offer. 

With us, you are dealing with total installation experts with over 30 years of experience with no limitations based on complexity of work.

Using The Boiler Installation Specialists, there is nothing complex – we will make it work and design it with you to meet your needs & requirements. 

We can supply and fit any boiler brand of your choice.

The most popular market leading boiler brands are: Worcester Bosch, Vaillant, Glowworm and Grant UK boilers.

We are accredited installers for these boiler brands which means, you as our customers will benefit from excellent aftercare directly from the manufacturers but also extended market leading manufacturers guarantee up to 12 years – free of charge.

Whilst we carry out the installation you will not have heating if we are replacing your boiler. In some cases you might still be able to use your hot water however we will advise you on the day of installation.

We will always leave you with running cold water and working toilets.

Gas and electrics will be turned off for a short duration and then turned back on for you to use. Our engineers will always keep you informed of this.

In the recent years our industry has changed with lead generation companies flooding the web offering online boiler installation sales. The actual work is not carried out by them self directly and is instead passed to a subcontractor.

As a company we do not operate as a middle man or on a volume basis to achieve quick sales using cheaper labour.

Instead with us, you only deal with our technical advisors or engineers directly. We do not advertise an initial lower price to then add extras. Instead we take the time to speak to you to get the full picture of your requirements to then give you your fixed price with installation carried our by our own in-house trained engineers.

It is also very important to do your research and understand how long a company has been established for and check if there are multiple businesses under one umbrella for transparency on your end simply so you understand who you are dealing with.

We provide various payment options to suit your convenience. You can choose to pay via credit/debit card, bank transfer, cash or explore our financing plans for easy and affordable payment arrangements.

On installation day you will not be able to use any gas appliances whilst we are installing your new boiler. Electric appliances will work as normal as we isolate your heating system separately.

Your new boiler will come with market leading extended manufacturer’s guarantee, offering peace of mind and protection. The duration and coverage of the guarantee does vary depending on the specific boiler model and manufacturer.

Our team will provide you with all the details regarding the guarantee accompanying your new boiler installation.

After the installation is complete, our team will ensure that everything is in proper working order. We will conduct thorough tests and checks to confirm the functionality and efficiency of your new boiler. Our engineers will provide you with any necessary instructions on how to operate and maintain your boiler effectively. We also offer ongoing support and maintenance services to keep your boiler running smoothly. Rest assured, we are committed to your satisfaction and will address any post-installation inquiries or concerns promptly and professionally.

We will also on your behalf register you boiler guarantee and notify building control. Certificates are then sent to you either via email or post.

If you misplaced any certificates duplicates can always be requested.

Yes, we provide comprehensive services for oil boilers and tanks. Our experienced team is well-versed in handling oil boiler installations and can offer expert advice on choosing the right oil boiler and tank for your specific needs. We ensure that all installations are carried out safely and in compliance with relevant regulations.

We offer brand new oil heating installations or replacement. No job is too complicated for us.

Concrete pads for your new oil tank or boiler can also be constructed by our engineers as part of your package.

Whether you need a new oil boiler or a replacement, we have you covered with our reliable and professional services.

Yes, we can supply and fit replacement cold storage tanks, vented cylinder or unvented pressurised cylinders.

We are here to do as much or little as you want with no limitations on our skills.

Yes we can supply and fit radiators in your home. This can be direct replacement in same location or if you wish to add a brand new radiator in a new position with associated pipework this can be carried out for you.

We also offer different radiator styles, your can opt to have standard radiators or if you’re seeking a luxurious look then choose one of our designer radiator ranges available.

Worcester Bosch Group Accredited Installer
OFTEC Safe Installation
Hertfordshire Trading Standards Logo
Checkatrade Logo
Vaillant Advance Installer Logo