Air Source Heat Pump Installation in Houston, Scotland: Built for Renfrewshire's Conservation-Area Cottages
Heat Geek and MCS-certified air source heat pump installation in Houston, built around the planned 18th-century village core of North Street and South Street, where every outdoor unit gets cleared against the conservation area boundary before it gets cleared for install day.
Most recent win:
Most recent win: Scotland Heating Installer of the Year 2026 at the Heating Installer Awards, going through to the UK national final at InstallerSHOW on 24 June 2026. The same design work went into a Bathgate air source heat pump and underfloor heating system, built for around 450% efficiency on a 35°C flow temperature, Highly Commended at the Scottish Energy Efficiency Awards 2025. The same heat loss survey and design standard applies to every heat pump we install, conservation-village cottages included.
“Sean/Aventus Eco were outstanding in helping me explore and decide. The full re-plumb needed because of problems with the old system was handled sensitively and professionally by the whole team.”
Robert Henderson, ⭐⭐⭐⭐⭐ Google Review
Heat Pump Grants Extended for 2026
Homeowners in Scotland can continue to claim £7,500–£9,000 for a new heat pump. Our MCS- and Heat Geek-certified installs qualify for the maximum support.
Houston's Planned Village Core and Why Air Source Heat Pump Installation Works Here
Getting a heat pump onto a North Street or South Street cottage in Houston means clearing the conservation area boundary first and sizing the system second; doing it in the wrong order is how a job stalls halfway through.
The village wasn’t left to grow on its own: it was laid out on purpose, when the laird rebuilt the settlement in 1781 using stone salvaged from the old Houston Castle, he planned it around those two main streets, and by the 1890s the cottages lining them had been rebuilt in blonde sandstone under slated roofs.
That planned core became a conservation area in 1968 and still centres on landmarks from the same period: the Mercat Cross on South Street, dating from 1731 with a base that may go back to the 14th century, and the Houston Inn, built in 1784, one of the few buildings from that era still standing. The older Killellan Church, built in 1635, sits nearby, and its manse is thought to be the oldest inhabited house in Renfrewshire.
Blonde sandstone from the 1780s and 1890s doesn’t behave like a modern cavity wall, and a heat pump sized off a generic estimate, not a proper room-by-room survey, will leave one of these cottages under-heated on the coldest nights. Newer builds around the edge of the village need a different calculation entirely, closer to a standard new-build retrofit.
The running-cost case for a heat pump holds up in Houston across both building types, an 1780s cottage and a newer estate house alike, and a correctly specified system, serviced annually, should run for 15 to 20 years or more before anything major needs replacing. Houston today is a commuter village for Glasgow and Paisley with a population of around 6,200, and most properties we’re asked to quote sit either in that older conservation core or in the housing built up around it since. Sandstone cottages like Houston’s are exactly the property type covered in our guide to heat pumps for old and existing Scottish homes, where getting the system size right the first time avoids either overpaying for capacity or undersizing a period property.
Houston sits around six miles from Paisley and within easy reach of Glasgow and Bridge of Weir, and the survey standard we bring here is the same one behind installing a heat pump in Glasgow. Book a free engineer-led survey to see what heat pump installation in Houston looks like for your property.
Why Houston Homeowners Choose Aventus Eco for Air Source Heat Pump Installation
A conservation area planning check trips up installers who’ve never had to clear one before. Here’s what we bring to a Houston job that a standard-template quote doesn’t:
- The same engineer from survey to switch-on. Sean surveys, designs and installs your system in person, and stays reachable on WhatsApp long afterward. We cover the whole of Scotland, Renfrewshire’s villages and commuter towns included.
- Conservation area clearance handled before you commit to anything. Houston’s planned core along North Street and South Street carries conservation area status since 1968, and outdoor unit siting needs to respect permitted development rules, with listed properties needing consent regardless of position. We confirm your designation with Renfrewshire Council and settle any heat pump planning permission question at survey stage.
- Solid sandstone gets a proper survey, not a shortcut. An air heat pump in Houston sized off a generic estimate leaves a blonde sandstone cottage running cold. We calculate heat loss room by room before specifying a system size.
- Heat Geek certified design process. Sean holds Heat Geek accreditation, a bar only a small number of Scottish installers clear. Our Heat Geek-accredited installation process page explains what that changes.
- Old and new Houston properties both get specced honestly. An 1890s sandstone cottage on South Street and a newer build at the edge of the village need genuinely different system sizes. We spec each for what it actually needs, not a one-size package.
- Full MCS certification. Required for the Home Energy Scotland grant, and we manage the entire application on your behalf.
The same conservation-aware approach, applied to your property.
Trusted by Homeowners in Houston
Rated 5 stars by clients across Houston and the surrounding area
Our Simple 3-Step Process
Free Engineer-Led Survey & Quote
Your engineer measures heat loss room by room across your Houston property and checks whether the conservation area boundary affects where the outdoor unit can go, before pricing the system. You'll have the full quote within a week, faster still if a failed boiler makes it urgent.
Fast & Expert Installation
Most Houston installs run 5 working days, Monday to Friday. A sandstone cottage needing radiator upgrades to suit solid-wall construction usually adds time, which we scope honestly at survey stage rather than discovering partway through the job.
Enjoy Lower Bills & Comfort
We set the weather compensation curve to suit the property's actual construction, not a generic default, and check back after your first winter to confirm the running-cost figures matched the quote. Kept serviced annually, a Houston system should comfortably reach 15 to 20 years of service, often more.
We install trusted brands like Vaillant and Panasonic, always chosen to match your home.
Heat Pump Grants Available to Houston Homeowners
Home Energy Scotland’s £7,500 grant applies to any eligible Houston owner-occupier and isn’t means-tested. Houston’s population, around 6,200, sits well above the threshold that defines an Accessible Rural postcode, so the standard £7,500 is the figure to plan around, not the £9,000 rural uplift. Sitting alongside it is an optional interest-free Home Energy Scotland loan of up to £7,500, for spreading whatever the grant doesn’t cover. Both are covered step by step in our heat pump grants in Scotland 2026 guide.
For a typical Houston heat pump system costing £15,000 to £20,000 fully fitted, larger detached properties at the edge of the village sitting higher, most Houston homeowners end up paying between £7,500 and £12,500 once the £7,500 grant is applied. Set against an old gas or oil system’s running costs, even through a genuine Scottish winter, as covered in our heat pump efficiency in Scottish winters guide, the numbers tend to work in the heat pump’s favour.
Home Energy Scotland wants a recent EPC before releasing funds, and only a system covering 100% of heating and hot water qualifies, so a hybrid setup falls outside it. We manage the full HES paperwork trail ourselves, so heat pump quotes in Houston are always free, no obligation attached.
See the exact numbers for your property and grant eligibility.
Real Clients. Real Results.
Penny and Monique’s 1920s Sandstone Home in Mount Florida
Penny and Monique’s 1920s sandstone end-terrace in Mount Florida, a short walk from Hampden Stadium, was exactly the kind of property people are told can’t run on a heat pump: older, draughty, lightly insulated. They found Aventus Eco through Loco Home Retrofit, a Glasgow co-op connecting homeowners with vetted installers. After a full heat loss survey, we designed a 7kW Vaillant aroTHERM plus system at a 45°C flow temperature, replaced four ageing radiators with high-output units, added one upstairs and two more in the new rear extension, and corrected substandard plumbing left by a previous installer.
The 250L Vaillant cylinder and system components were fitted into a tight 1.2m-high basement to save upstairs living space. The result: a constant 21°C throughout the house in every season, regardless of the property’s age or insulation level. A home written off by others became one of our best examples of what a properly designed system can do.
“We were told a property like ours couldn’t run on a heat pump. Aventus Eco proved everyone wrong. The house is warm all the time, the new radiators look great, and we love that the whole system is neatly hidden away in the basement. Special thanks to Loco Home Retrofit for pointing us in the right direction.”
Penny & Monique, Mount Florida, ⭐⭐⭐⭐⭐
See Our Work First-Hand
Explore some of our recent heat pump installations across Houston and the surrounding area. Clean, professional, and engineered for performance.
Our Guarantees
- Workmanship guarantee: 12 months on every installation, with our lead engineer personally accountable.
- Manufacturer warranties: 7 years standard on Vaillant aroTHERM plus, 7 years on Panasonic Aquarea. Extensions available.
- MCS performance guarantee: Every installation comes with the MCS warranty confirming performance to the design spec.
- Aftercare access: Direct WhatsApp access to your installer for the lifetime of the system.
- Annual service available: Fixed-price annual servicing for Houston customers. See our guide to heat pump servicing in Scotland for what’s included.
Book your free engineer-led survey.
Frequently Asked Questions
How much does an air source heat pump cost in Houston?
A typical Houston property runs £15,000 to £20,000 fully installed before the grant, with larger detached properties sitting toward the top of that range. Once the £7,500 grant is applied, most Houston homeowners are left paying somewhere between £7,500 and £12,500. You’ll get a fully itemised quote at survey stage, with no obligation to proceed.
What heat pump grants are available in Houston?
£7,500 from Home Energy Scotland, available to any eligible owner-occupier and not tied to income. Houston’s population puts it well outside the rural uplift band, so budget on the standard figure. An optional interest-free Home Energy Scotland loan of up to £7,500 sits alongside it. We handle all the paperwork.
Can I install a heat pump in Houston's conservation area?
Yes, with the right groundwork. Houston’s planned village core along North Street and South Street has carried conservation area status since 1968, and an outdoor unit needs positioning that respects permitted development rules, or planning consent if the property is listed. We confirm your property’s exact status with Renfrewshire Council at survey stage, so there are no surprises partway through the job.
Can an air source heat pump replace my boiler in Houston?
Yes, and boiler replacement in Houston is usually a straightforward swap once the conservation area check is done. An 1890s sandstone cottage on North Street or South Street and a newer build at the edge of the village both get the same treatment: hot water cylinder replaced with a heat pump-compatible unit, old fuel supply or tank capped and removed, and radiators upgraded only where the survey shows they need it.
Are hybrid heat pumps available in Houston?
Yes, though grant funding from Home Energy Scotland doesn’t reach them, since only a system covering 100% of heating and hot water qualifies. Where a Houston property, old cottage or new build, isn’t ready for a full retrofit, we pair a smaller heat pump with the existing boiler so it handles most of the annual heating demand, with the boiler stepping in only when temperatures drop hardest.
Do Houston's sandstone cottages need different sizing to a newer build?
Yes. The blonde sandstone cottages along North Street and South Street, built in the 1780s and rebuilt again in the 1890s, lose heat on a different curve to a modern cavity wall. A newer Houston build is a more predictable retrofit by comparison. We calculate flow temperature and radiator sizing room by room for an air heat pump in Houston rather than applying one spec across the whole village.
How long does heat pump system installation take in Houston?
Most Houston installations run to the same 5 working days, Monday to Friday: outdoor unit sited and weatherproofed, old boiler removed, pipework and cylinder work completed, radiators upgraded where needed, then full commissioning. A sandstone cottage needing more extensive radiator work can add a few days.
We’ll answer your questions, explain your options, and help you figure out what’s best for your home.
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We’ll assess your home, explain your options, and leave you to decide.
- Slash your energy bills
- Leave gas behind for good
- Enjoy a warm, comfortable home
- Get funding support you’re entitled to