Builder in Hayes, UB3 and UB4 — Extensions, Loft Conversions, and Full Renovations
Jaspal Constructions Limited delivers building and renovation projects in Hayes from our base at 170 Kings Avenue, Greenford, UB6 9DF — approximately 4 miles from Hayes town centre. Since 2011, across over 2,000 completed West London projects, we have delivered house extensions, loft conversions, full house renovations, kitchen and bathroom refurbishments, garage conversions, electrical rewires, boiler installations, roofing, plastering, flooring, painting, carpentry, and new builds throughout UB3 and UB4.
Recent Hayes transactions confirm an active mid-range market: 28 Chestnut Close UB3 1JG sold for £530,000 in February 2026; 45 Granville Road UB3 4PL sold for £470,000 in February 2026 (HousemetricUK May 2026). The UB3 1 sector grew 4.2 percent in the past year. The Elizabeth line at Hayes and Harlington station — delivering sub-20-minute travel to Paddington and direct Heathrow access — has strengthened buyer demand across UB3 and UB4 and increased renovation investment from homeowners improving long-term properties.
Public liability insured · NICEIC-certified · Gas Safe registered · JCT contracts on every project.
Local Knowledge
The Hayes Housing Stock — Interwar Semis and Post-War Mixed Development
Hayes developed as a mixed industrial and residential town from the late Victorian era through the post-war period. The residential stock in UB3 and UB4 reflects this varied history.
UB3 (Hayes and Harlington) contains a significant proportion of 1930s semidetached housing on streets such as Granville Road, Pump Lane, Nestles Avenue, and the roads off Uxbridge Road. These cavity-wall semis follow the same construction pattern as the 1930s stock in Greenford and Northolt: suited to rear extensions within Permitted Development, viable for Velux loft conversions, and efficient to convert from integral garages. UB4 (Hayes End) contains a mix of post-war terraced housing from the 1950s and 1960s alongside the interwar stock, with different structural characteristics requiring individual assessment.
Properties closest to the Elizabeth line station at Hayes and Harlington have seen increased renovation investment since the line opened. Buyers who previously looked at Southall or Greenford are now considering Hayes for its value relative to postcode proximity to Heathrow and sub-20-minute connections to Paddington — and they are arriving with higher renovation expectations.
Planning authority for UB3 and UB4 is the London Borough of Hillingdon — not Ealing, Brent, or Harrow. This distinction matters for planning applications: Hillingdon has its own Local Plan and planning policies separate from Ealing.
£530,000
Recent UB3 1 sale, Feb 2026
+4.2%
UB3 1 sector growth, past year
Our Work
Recent Projects in Hayes, UB3 & UB4
A selection of extensions, loft conversions, and renovations completed for homeowners across UB3 and UB4 — built on time, on budget, and to a fixed-price quote.
Services
Building Services in Hayes — What We Deliver in UB3 and UB4
House Extensions in Hayes
We build rear extensions, side extensions, and kitchen extensions on Hayes semidetached and terraced properties throughout UB3 and UB4. A single-storey rear extension in Hayes costs approximately £35,000 to £70,000 in 2026. Most UB3 1930s semis qualify for a rear extension up to 3 metres under Permitted Development, extendable to 6 metres under the Neighbour Consultation Scheme. We manage the Lawful Development Certificate with the London Borough of Hillingdon and all Building Regulations.
Loft Conversions in Hayes
We convert roof spaces on Hayes properties into bedrooms, home offices, and bathrooms. Velux loft conversions in Hayes: £25,000 to £45,000. Dormer loft conversions: £45,000 to £75,000. Most UB3 1930s semidetached houses have gable-end roofs with sufficient volume for a Velux conversion. We confirm viability by measuring the existing roof space at the free survey.
Full House Renovation in Hayes
Complete renovation programmes across UB3 and UB4: all trades from strip-out to decoration under a single JCT contract. Full 3-bedroom Hayes semi renovation: £60,000 to £140,000 depending on scope and specification.
Kitchen Renovation in Hayes
Kitchen refits and open plan kitchen renovations throughout Hayes. London mid-range kitchen refit: £10,000 to £20,000. Full structural open plan kitchen renovation with wall removal: £40,000 to £100,000+. We manage structural engineer engagement and Building Regulations for all wall removals.
Bathroom Renovation in Hayes
Family bathrooms, en-suites, wet rooms, and cloakrooms across UB3 and UB4. London mid-range bathroom renovation: £8,000 to £15,000. Part P certification on all bathroom electrics. Tanking to BS 8000-0 on all shower areas.
Garage Conversion in Hayes
Integral and attached garage conversions in Hayes, adding a bedroom, home office, or utility room without planning permission. Integral garage conversion: £18,000 to £35,000. Building Regulations approval always required. We confirm the planning position for your specific Hayes address at the free survey.
Electrical Services in Hayes
NICEIC-certified EICR inspections, full rewires (3-bed London: £4,500 to £9,000), consumer unit upgrades (£450 to £950), and EV charger installation (£800 to £1,500) throughout UB3 and UB4. All work Part P self-certified. We submit EV charger installation notifications to Hillingdon Building Control.
Plumbing and Heating in Hayes
Gas Safe registered boiler installation, central heating, and bathroom plumbing in Hayes. Combi boiler supply and installation: £3,200 to £5,500. Benchmark Commissioning Checklist completed. Gas safety certificate at every completion.
Roofing in Hayes
Flat roof replacement on Hayes extensions (EPDM £40–£70/m2, GRP £50–£80/m2), pitched roof tile repair and replacement, ridge re-bedding, chimney flashing, and guttering replacement across UB3 and UB4.
All Other Services in Hayes
We also deliver in Hayes: basement conversions, plastering and rendering, flooring, painting and decorating, carpentry and joinery, and new build construction.
Planning
Planning in Hayes — London Borough of Hillingdon
Hayes UB3 and UB4 are in the London Borough of Hillingdon — not Ealing. All planning applications for Hayes properties must be submitted to the London Borough of Hillingdon. Hillingdon has its own Local Plan and planning policies distinct from Ealing's. Householder planning fee: £528 from April 2025. Hillingdon targets 8 weeks for householder determination.
We manage planning applications and LDC submissions with Hillingdon Council on behalf of our Hayes clients. If you have been given planning advice based on Ealing policies and your property is in UB3 or UB4, that advice may not apply — we confirm the correct position at the free survey.
Key Facts
- Planning authority
- London Borough of Hillingdon
- Standard householder determination
- 8 weeks
- Householder planning fee (from Apr 2025)
- £528
Why Us
Why Hayes Homeowners Choose Jaspal Constructions
Four miles from Hayes means our site managers are in UB3 and UB4 regularly. We are familiar with Hillingdon Council's planning requirements — an important distinction from Ealing that many West London contractors working across borough boundaries get wrong. We have worked in Hayes since 2011 and understand the 1930s and post-war housing stock across UB3 and UB4.
Credentials:
NICEIC Certified Electricians
Gas Safe Registered Engineers
Public Liability Insurance
JCT Domestic Building Contracts
5-Year Guarantee
What Our Hayes Clients Say
We are actively building our Google review profile from UB3 and UB4 clients. If you are a previous Hayes client, we would be grateful for an honest review of your experience.
FAQ
Frequently Asked Questions — Building in Hayes
Which council handles Hayes planning applications?
The London Borough of Hillingdon covers UB3 and UB4. All householder planning applications for Hayes properties are submitted to Hillingdon Council — not Ealing. We submit and manage Hillingdon planning applications on behalf of our Hayes clients.
Has the Elizabeth line increased renovation investment in Hayes?
Yes. The Elizabeth line at Hayes and Harlington has materially improved connectivity and has driven renovation investment in UB3 properties, particularly those within walking distance of the station. The UB3 1 sector grew 4.2 percent in the last year (HousemetricUK 2026), reflecting this increased demand.
Can I add a rear extension to my Hayes 1930s semi without planning permission?
Most 1930s semidetached properties in UB3 qualify for a single-storey rear extension up to 3 metres under Permitted Development, extendable to 6 metres under the Neighbour Consultation Scheme, subject to Hillingdon Council's LDC confirmation. We confirm the position at the free survey.
How much does a loft conversion cost in Hayes in 2026?
A Velux loft conversion in Hayes: £25,000 to £45,000. A dormer loft conversion: £45,000 to £75,000. Fixed-price written quote after surveying the specific roof at your Hayes property.
Do you work across both UB3 and UB4?
Yes. We work throughout UB3 (Hayes town, Botwell, Yeading) and UB4 (Hayes End, Coldharbour Lane) and all surrounding residential streets.
How far are you from Hayes?
Approximately 4 miles from Hayes town centre. We typically arrange free surveys in Hayes within 5 to 7 working days of your call.
Book Your Free Survey in Hayes
We are based in Greenford, approximately 4 miles from Hayes. We can visit your property, assess the project, confirm the planning position with Hillingdon Council, and provide a detailed fixed-price written quote — usually within 5 to 7 working days of your call.
Get in Touch
Jaspal Constructions Limited
Sat: 8:00am – 1:00pm