From individual upgrades to full property refurbishments, we deliver properly planned systems that perform reliably and integrate smoothly with your wider project.

We install high-efficiency boilers that match your home or build project perfectly. From replacements to full system upgrades, we make sure your heating is safe, powerful, and future-ready.
Reliable, energy-efficient boiler installations — fitted with precision, using trusted brands built to last.

We replace existing boiler systems that are no longer suitable for the property, layout, or level of demand.
This service is typically used during refurbishments, extensions, or planned upgrades where heating performance, capacity, and system compatibility need to be reassessed — not simply swapped like-for-like.

We plan and install the plumbing systems that support residential bathrooms — from individual en-suites to multi-bathroom properties.
This service is typically used during refurbishments and new builds where water pressure, flow rates, pipe routing, and coordination with other trades need to be resolved early to avoid compromises later.

We design and install water-based underfloor heating systems as part of wider residential plumbing and heating schemes such as our Whole-Home Plumbing Systems.
This service is typically specified on refurbishments, extensions, and new builds where floor build-ups, zoning, heat output, and coordination with structure and finishes need to be planned properly from the outset. Often integrated alongside Unvented Hot Water Cylinders on multi-bathroom projects.

We design and install complete plumbing systems for residential projects where the layout, demand, and future use of the property need to be considered as a whole.
This service is typically used on new builds and full refurbishments where pipe routes, plant locations, pressure requirements, and coordination with the wider build must be planned properly before work begins.

We design and install air-source heat pump systems as part of wider residential heating schemes, where the property layout, insulation levels, and heat demand support their use.
This service is typically considered on new builds and major refurbishments where system design, heat loss calculations, emitter selection, and integration with other services need to be assessed properly before specification.

We design and install water booster systems to support properties where incoming mains pressure or flow is insufficient for the level of demand.
This service is typically specified on larger homes, multi-bathroom refurbishments, and high-demand projects where pressure, flow rates, and simultaneous usage need to be assessed and resolved as part of the overall plumbing design.

We design and install unvented hot water cylinder systems for residential properties where hot water demand, flow rates, and simultaneous usage need to be properly supported.
This service is typically specified on refurbishments, extensions, and new builds with multiple bathrooms, where correct sizing, pressure management, and G3 compliance must be addressed as part of the overall system design.

We design and install radiator systems that are correctly sized and integrated with the wider heating system to deliver consistent heat output across the property.
This service is typically used during refurbishments, extensions, and system upgrades where existing radiators are no longer suitable for the layout, heat demand, or system design.
Every plumbing and heating system we install is designed with long-term reliability, serviceability, and performance in mind — not just what works on installation day.
Material choice, system layout, and installation methods are considered as part of the wider project, the property’s usage, and how the system will be maintained over time. In many cases, this leads us to specify traditional copper pipework for its durability, repairability, and proven performance — particularly on larger or more complex installations.
That doesn’t mean one solution fits every project. It means decisions are made deliberately, based on suitability, access, longevity, and how the system will actually be used — not shortcuts or convenience.
The result is plumbing and heating systems that remain dependable long after the project is complete.

Clients choose Sable Projects because we approach plumbing and heating with the same level of planning, coordination, and accountability expected across the wider build.
Our work is structured around clear scopes, realistic timelines, and systems that are designed properly before installation begins. We coordinate closely with other trades, follow drawings and specifications accurately, and communicate early if something needs to be resolved — not after it becomes a problem.
On site, we work cleanly and methodically, respecting the property, the programme, and the people involved. Systems are installed to perform reliably, remain serviceable, and integrate cleanly with the rest of the project — without shortcuts or last-minute compromises.
For clients managing complex residential work, that reliability makes a tangible difference.
Whether you’re planning a new build, a major refurbishment, or a considered system upgrade, we’re happy to talk through your requirements and advise on the best approach.
Use the options below to start a conversation — we’ll review your project properly and come back with clear next steps.
No sales pressure. No obligation. Just clear advice and professional input.
A few details helps us respond properly. If you have drawings or a spec, email them to
Phone: 07766 202556
Address Office: 2a Highland Drive, Hemel Hempstead HP3 8PT