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Tell Craig about the air source heat pump, approximate size and postcode. You do not need a finished specification to start.
Specialist foundation installation
Air Source Heat Pump Bases
A heat-pump base must keep the outdoor unit level while preserving airflow, service access and condensate drainage.
50+ years
Family groundwork experience
Full 10-year
Written JustBases guarantee
Call Craig directly
Friendly practical advice
One clear price
Written foundation scope
Still comparing the options? What is the best base for an air source heat pump?
Start with what you want to build
The right foundation for your air source heat pump
An air source heat pump is not simply placed wherever a small slab will fit. The outdoor unit needs the clearances, vibration control, fixing arrangement and condensate route stated by its manufacturer and system designer.
True and stable support
The unit should remain level so fans, compressors and condensate arrangements work as intended.
Explore the details →Airflow clearance
The base position must leave the manufacturer's required intake and discharge space.
Explore the details →Condensate route
Defrost water needs a safe destination that will not pond or freeze on a walkway.
Explore the details →Service access
Panels and isolators should remain reachable without dismantling fences or planting.
Explore the details →Three easy steps
From first call to a finished foundation
Getting started is simple. We will guide you through the choices and explain any information needed before installation.
Talk through the options
We discuss the site and suitable foundations, identify any supplier information needed and provide a clear written quotation.
Install and hand over
Our team marks out and installs the agreed foundation, with the required checks before the next stage of your project.
Choose the foundation, not the complication
Foundation options for your air source heat pump
These are the methods worth assessing for this application. The structure, support plan and actual ground determine the right choice—not a one-size-fits-all specification.
Concrete
Concrete foundation
A compact concrete pad gives a firm ground-mounted platform and can receive the installer-approved anti-vibration feet or frame.
Worth considering for: Permanent ground units beside houses and plant areas
Ask about this option →
Paving slabs
Paving-slab base
A purpose-prepared heavy slab or proprietary base may suit some units when the heat-pump supplier accepts it and the sub-base is sound.
Worth considering for: Smaller domestic units with an approved mounting system
Ask about this option →
Installed ground screws
Ground screws and support frame
Ground screws may support an engineered equipment frame where the designer accepts the arrangement and clearances can be maintained.
Worth considering for: Sloping ground or locations where a raised mount is advantageous
Ask about this option →Clear prices, agreed scope
A price for your project
Specialist foundations need a quotation matched to the structure, ground and installation scope. A generic garden-building price would not reliably represent this project. Call Craig with your idea and postcode to get started.
No VAT is added to the guide prices shown.
Get your exact written priceView the full base price guideThe structure
Its loads, footprint and accepted support arrangement.
The site
Ground conditions, levels, buried services and practical access.
The foundation package
Specified materials, installation and any agreed testing or supporting frame.
The written quotation
Clear inclusions, responsibilities and timing before work is booked.
Easy to start, free to ask
Tell us about your air source heat pump
You do not need drawings or a finished specification before getting in touch. Send what you have and Craig will explain the useful next step.
Helpful details, if available
- Heat-pump make and model
- Installer's base drawing
- Required finished height
- Condensate destination
- Pipe and cable approach
Talk to Craig
Craig will listen to what you are planning and help establish the foundation information that matters.
Online quote requests are normally answered within 24 hours, excluding weekends.
Request your free quote
Just give us your contact details and a short description of what you want to build. We will guide you through the rest.
Your enquiry
Air Source Heat Pump Bases installation
Planned around its use
What matters for your air source heat pump
JustBases installs the agreed ground base ready for the MCS or competent heat-pump installer, without moving responsibility for the refrigerant, electrical or commissioning work.
Discuss your project with Craig →True and stable support
The unit should remain level so fans, compressors and condensate arrangements work as intended.
Airflow clearance
The base position must leave the manufacturer's required intake and discharge space.
Condensate route
Defrost water needs a safe destination that will not pond or freeze on a walkway.
Service access
Panels and isolators should remain reachable without dismantling fences or planting.
When the design and ground are suitable
Why consider ground screws?
Year-round flexibility
A screw-only foundation avoids pouring and curing concrete, reducing one source of weather-related delays. Unsafe access, flooding, frozen or unsuitable ground can still mean postponing installation.
Less digging and mess
Localised supports can reduce excavation and spoil compared with extensive concrete foundations. Clearance, pre-drilling, service trenches and machinery access may still disturb the site.
A lower-impact approach
Using less concrete and moving less spoil can reduce material use and transport. Retaining vegetation may benefit habitats, but trees and wildlife still need protection. Steel manufacture and the full project design matter to any carbon comparison.
Before installation
Dimensions, approvals and responsibilities
The heat-pump designer should select the unit position with noise, airflow, pipe runs and permitted-development rules in mind before the foundation is installed.
We need the exact mounting footprint and condensate detail. Catalogue cabinet dimensions alone do not show the feet, frame or required clearances.
JustBases quotes the agreed foundation and groundwork. Product installation, specialist connections, commissioning and third-party design remain outside our scope unless the written quotation expressly includes them.
Genuine customer feedback
A full 10-year JustBases guarantee
Our full written guarantee covers installation workmanship and the foundation materials we supply, subject to your quotation. Read what customers say about our foundation work below, with the original job types and sources shown.
"I couldn't recommend Craig highly enough! Communication prior to the job was outstanding even considering our ever changing goal posts. Craig and his team turned up exactly at the agreed time, were well presented, friendly and professional. The cleanliness, attention to detail and quality of the job was outstanding."
— Verified Customer
Checkatrade · BH16 · 2020-05-27
Work listed by the source: Log cabin foundation
"Good standard of workmanship. Friendly and efficient. Prompt response for estimate and fitted into our timescale. Will be using the firm in future and thoroughly recommend them."
— Verified Customer
Checkatrade · SP6 · 2019-09-16
Work listed by the source: Concrete base for new summerhouse
"Craig and his team were very professional throughout the job. They worked tirelessly and extremely hard. The job involved digging up a thick reinforced concrete base. Then creating a whole new base with precision engineering in preparation to accept a new building on top. The result was an excellent job all round."
— Verified Customer
Checkatrade · BH24 · 2021-11-30
Work listed by the source: Building foundations and landscaping
Our service area
Foundation installation across the South
For this application we cover Dorset, Hampshire, South Wiltshire. Tell Craig the postcode and we will confirm the suitable installation options and travel requirements.
Straight answers before you decide
Air Source Heat Pump Bases FAQs
No. We install the agreed ground foundation. Refrigerant, hydraulic, electrical and commissioning work remains with the competent heat-pump team.
Still unsure? Send Craig a short enquiry and we will help with the next step.
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Explore this application →Tell us what you want to build
An outline of the project and your postcode are enough to start.