Gas Safe Installation
Boiler work is completed by appropriately qualified Gas Safe registered heating engineers.
Gas Safe Registered Boiler Installers
Gas Boiler Installation in Hertfordshire
Professional boiler replacement and installation from experienced local heating engineers.
NCS installs combi, system and conventional boilers across Hertfordshire, with recommendations based on your property, hot-water demand, existing heating system and budget.
Gas Safe Registered • Selected Worcester Bosch Guarantees Up to 12 Years
Combi, system & regular boilers
Flexible finance may be available
Leading manufacturers
Established since 2000
Professional Boiler Replacement
A New Boiler Should Be Chosen Around Your Home
Replacing a boiler is not simply a case of choosing another appliance with the same output as the old one.
Property size, hot-water demand, number of bathrooms, existing heating layout and the condition of the wider system can all influence the best solution.
NCS can assess your existing installation and recommend a suitable combi, system or conventional boiler from a range of established manufacturers.
Our Gas Safe registered engineers then install, commission and test the new boiler in line with the relevant requirements.
Why Replace Your Boiler With NCS?
Reliable Heating From Experienced Local Engineers
From initial recommendation to commissioning and aftercare, NCS manages the complete boiler replacement process.
Property-Specific Advice
We assess your heating and hot-water requirements before recommending the boiler.
Extended Guarantees
Selected Worcester Bosch installations can include manufacturer guarantees of up to 12 years.
25+ Years Experience
NCS has provided plumbing and heating services to customers since 2000.
Choosing the Right Boiler
Combi, System or Conventional Boiler?
The right boiler type depends on the property, available space and how much heating and hot water your household uses.
Compact Solution
Combi Boiler
A combination boiler provides heating and hot water without requiring a separate hot-water cylinder.
No separate cylinder required
Hot water produced on demand
Popular in smaller and medium homes
Stored Hot Water
System Boiler
A system boiler works with a hot-water cylinder and can suit homes with greater simultaneous hot-water demand.
Works with a hot-water cylinder
Suitable for multiple outlets
Good option for larger households
Traditional System
Conventional Boiler
Also known as a regular or heat-only boiler, this can be appropriate for certain traditional heating-system layouts.
Suitable for some existing systems
Works with stored hot water
Can retain traditional layouts
Boiler Installation Costs
How Much Does a New Boiler Cost?
Boiler installation costs vary according to the appliance selected and the amount of work required to adapt the existing heating system.
A straightforward boiler replacement is very different from converting a conventional system to a combi or relocating the boiler elsewhere in the property.
NCS therefore prepares the quotation around the actual installation rather than relying on one generic price.
Boiler type
Boiler output
Manufacturer
Boiler relocation
Flue requirements
System conversion
Heating-system condition
Additional controls
Boiler Replacement
When Might It Be Time for a New Boiler?
Not every boiler fault means replacement is necessary, but there are situations where upgrading may become the more practical long-term option.
Repeated Breakdowns
Frequent repairs can make an older boiler increasingly expensive and inconvenient to maintain.
Poor Reliability
An unreliable heating system can become particularly disruptive during colder weather.
Older Equipment
Age alone does not determine replacement, but older systems may become less economical to repair.
Changing Hot-Water Needs
Home extensions or additional bathrooms may mean the existing system no longer suits the household.
System Upgrade
A boiler replacement can provide an opportunity to improve controls and other parts of the heating system.
Property Renovation
Major refurbishment may provide a practical opportunity to redesign or relocate the heating equipment.
Protecting Your New Boiler
The Heating System Matters Too
A new boiler should not be considered in isolation. The condition of the existing heating water and system can influence long-term performance and reliability.
Magnetic Filters
Help capture magnetic debris circulating within the heating system.
System Cleansing
Appropriate cleaning and water treatment can form part of the installation process.
Power Flushing
Where appropriate, Power Flushing may be recommended for heating systems requiring more substantial cleaning.
Scale Protection
Suitable measures may be recommended where scale protection is relevant to the installation.
Water Treatment
Correct treatment helps protect the boiler and wider heating system.
Commissioning
The completed system is tested and commissioned before handover.
Leading Boiler Manufacturers
A Boiler Selected Around Your Requirements
NCS installs boilers from several established manufacturers, allowing us to recommend equipment around the property, required performance, warranty options and budget.
Worcester Bosch
Vaillant
Ideal
Baxi
Potterton
Grant
Worcester Bosch
Worcester Bosch Diamond Installers
NCS is a Worcester Bosch Diamond Installer. Our engineers receive relevant manufacturer training and can install selected products with extended manufacturer guarantees.
Up to 12-Year Guarantees Available
Available on selected Worcester Bosch products,
subject to the applicable product and installation terms.
Open Manufacturer Choice
We Are Not Limited to One Brand
Worcester Bosch may be appropriate for many homes, but it is not automatically the right choice for every installation.
NCS also installs Vaillant, Ideal, Baxi, Potterton and Grant boilers, allowing the recommendation to be based on the actual requirements of the project.
Flexible Payment Options
Boiler Finance May Be Available
Flexible finance options may be available on qualifying boiler installations, subject to status and the relevant terms.
Professional Boiler Installation
The NCS Boiler Replacement Process
We keep the process straightforward from the first assessment through to testing and handover.
1
Initial Assessment
We review the property, existing boiler and your heating and hot-water requirements.
2
Boiler Selection
Suitable boiler types, outputs and manufacturers are considered.
3
Quotation
We provide the proposed equipment and installation details before work is booked.
4
Preparation
The existing system and any required protection, cleansing or alterations are considered.
5
Installation
Our Gas Safe engineers complete the boiler installation and associated heating works.
6
Commissioning & Handover
The system is tested, commissioned and controls are explained before completion.
Why Choose NCS?
Local Heating Specialists Since 2000
NCS combines long-standing heating experience with professional installation, established manufacturers and ongoing customer support.
Established Since 2000
Gas Safe Registered
Worcester Bosch Diamond Installer
Multiple Boiler Manufacturers
Fully Trained Engineers
Finance Options Available
System Protection Options
Ongoing Heating Support
Local Boiler Installers
Boiler Installation Across Hertfordshire
NCS provides boiler replacement and heating services throughout Hertfordshire and surrounding areas.
Hertford
Ware
Stevenage
Welwyn Garden City
St Albans
Hitchin
Harpenden
Bishop's Stortford
Broxbourne
Hoddesdon
Loughton
Hertfordshire & South East
Frequently Asked Questions
Boiler Installation FAQs
Which boiler type is right for my home?
That depends on the property, existing heating layout, available space and hot-water requirements. NCS assesses these factors before recommending a combi, system or conventional boiler.
How long does a boiler replacement take?
Many straightforward boiler replacements can be completed within a day, while relocations, system conversions or additional heating work may take longer.
Can you replace my conventional boiler with a combi?
Potentially, yes. Whether this is appropriate depends on the property, water supply, hot-water demand and existing heating-system arrangement.
Do you install system boilers?
Yes. NCS installs combi, system and conventional boilers and can recommend the most appropriate arrangement following assessment of the property.
Do you offer Worcester Bosch boilers?
Yes. NCS is a Worcester Bosch Diamond Installer and also installs boilers from several other established manufacturers.
Can I get an extended boiler guarantee?
Selected Worcester Bosch products may be available with guarantees of up to 12 years, subject to the relevant product and installation conditions.
Does a new boiler need a magnetic filter?
System protection requirements vary by installation. Magnetic filtration, system cleaning and appropriate water treatment may form part of the recommended works.
Can you Power Flush my heating system?
Yes. Where appropriate, NCS can provide Power Flushing and other heating-system cleansing measures.
Do you offer finance for boiler installation?
Flexible finance options may be available for qualifying installations, subject to status and the applicable terms.
Can you move my boiler to a different location?
In many properties this may be possible, subject to the new location being suitable for the boiler, flue, pipework and relevant installation requirements.
Start Your Boiler Project
Ready to Replace Your Boiler?
Tell us about your property and existing heating system. We can help identify an appropriate boiler and provide a no-obligation quotation.
✓ No-obligation quotation
✓ Gas Safe registered engineers
✓ Property-specific recommendation
Boiler selection, installation costs, guarantees and finance options are subject to the individual property, equipment selected, installation requirements and applicable terms. Finance is subject to status.