Estimated Price Guide for Services
West Sussex: Bognor Regis, Chichester & Arundel
January 2026
Welcome to Swanbourne Construction’s comprehensive pricing guide. With over 20 years of experience serving homeowners throughout West Sussex, we understand the importance of transparent pricing when planning your building project. The prices outlined below are estimated ranges based on current UK market research for 2025-2026 and reflect typical costs in the West Sussex area. Please note that every project is unique, and actual costs will depend on your specific requirements, site conditions, materials chosen, and project complexity. We offer free, no-obligation consultations and quotes tailored to your exact needs.
1. Loft Conversions
Transform your unused loft space into valuable living area. Loft conversions are one of the most cost-effective ways to add space to your home, typically adding 15-24% to your property value.
- Types of Loft Conversions
| Conversion Type | Estimated Cost Range | Cost per m² |
|---|---|---|
| Velux/Rooflight | £25,000 - £35,000 | £1,200 - £1,500 |
| Dormer Conversion | £38,000 - £55,000 | £1,400 - £1,800 |
| Hip-to-Gable | £45,000 - £65,000 | £1,600 - £2,000 |
| Mansard Conversion | £55,000 - £75,000+ | £1,800 - £2,500 |
- What's Included:
- Structural work including steel beams and supports
- Staircase installation
- Insulation to current building regulations
- Windows and natural lighting
- Electrical installation and lighting
- Plastering and finishing
- Fire safety measures (fire doors, smoke alarms)
- Flooring preparation
2. House Extensions
Expand your living space with a professionally designed and built extension. We specialize in seamlessly integrating new space with your existing home.
- Single-Storey Extensions
| Extension Size | Cost Range | Cost per m² |
|---|---|---|
| Small (10-15m²) | £20,000 - £35,000 | £2,000 - £2,300 |
| Medium (20-30m²) | £36,000 - £65,000 | £1,800 - £2,200 |
| Large (35-50m²) | £63,000 - £100,000 | £1,800 - £2,000 |
- Two-Storey Extensions
| Extension Size | Cost Range | Cost per m² |
|---|---|---|
| 30m² total (15m² per floor) | £66,000 - £90,000 | £2,200 - £3,000 |
| 50m² total (25m² per floor) | £110,000 - £150,000 | £2,200 - £3,000 |
- What's Included:
- Foundations and groundworks
- Structural work and steelwork
- Brickwork/blockwork to match existing
- Roof structure and covering
- Windows and doors
- First-fix carpentry
- Electrical and plumbing first fix
- Insulation to current standards
- Plastering and decorating preparation
3. Bathroom Installations & Renovations
Transform your bathroom into a beautiful, functional space. From complete renovations to new installations, we handle all aspects of bathroom fitting.
| Bathroom Type | Cost Range | Description |
|---|---|---|
| Budget Bathroom | £3,000 - £4,500 | Basic suite, standard tiles |
| Standard Bathroom | £5,000 - £8,000 | Quality fixtures, good tiles |
| Premium Bathroom | £9,000 - £14,000+ | Luxury suite, premium tiles |
| En-Suite Installation | £6,000 - £10,000 | Compact suite, shower enclosure |
| Wet Room | £5,500 - £9,000 | Tanking, drainage, non-slip tiles |
- Typical Bathroom Package Includes:
- Removal and disposal of existing bathroom
- Plumbing for toilet, basin, bath/shower
- Electrical work including lighting and extractor fan
- Wall and floor tiling
- Installation of new bathroom suite
- Plastering and preparation
4. Kitchen Installations & Renovations
Create your dream kitchen with our comprehensive installation service. We manage every aspect from removal of your old kitchen through to the complete fitting of your new space.
| Kitchen Size | Total Cost Range | Spec Level |
|---|---|---|
| Small Kitchen (Budget) | £6,500 - £10,000 | Basic units, laminate worktops |
| Medium Kitchen (Standard) | £12,000 - £20,000 | Quality units, solid worktops |
| Large Kitchen (Premium) | £25,000 - £40,000+ | Bespoke units, stone worktops |
- Kitchen Installation Includes:
- Removal of existing kitchen
- First-fix plumbing and electrical work
- Installation of base and wall units
- Worktop templating, cutting and fitting
- Sink and tap installation
- Built-in appliance fitting (oven, hob, hood)
- Tiling for splashbacks
- Final electrical connections
- Waste disposal and site cleanup
5. Carpentry Services
Our skilled carpenters provide a wide range of bespoke carpentry and joinery services to add the perfect finishing touches to your home.
| Service | Estimated Cost |
|---|---|
| Carpenter Day Rate | £250 - £350 per day |
| Carpenter Hourly Rate | £30 - £40 per hour |
| Door Hanging (per door) | £60 - £100 (labour only) |
| Skirting Board Installation | £10 - £15 per linear metre (supply & fit) |
| Architrave Installation | £9 - £15 per linear metre (supply & fit) |
| Bespoke Fitted Wardrobes | £1,000 - £3,000+ (depending on size/spec) |
| Under-Stairs Storage | £1,000 - £2,500 |
| Bespoke Shelving Units | £400 - £1,500 |
| Decking Installation | £100 - £150 per m² (supply & fit) |
| New Staircase | £3,000 - £5,000+ (supply & fit) |
6. General Building Works & Renovations
We offer comprehensive building and renovation services for all aspects of your property, from minor repairs to complete refurbishments.
| Service | Estimated Cost |
|---|---|
| Full House Refurbishment (3-bed) | £35,000 - £75,000+ |
| Single Room Renovation | £2,500 - £8,000 |
| Brickwork/Blockwork | £65 - £90 per m² |
| Plastering (per room) | £400 - £900 |
| Flooring Installation | £20 - £60 per m² (labour + materials) |
| Window Replacement (per window) | £400 - £800 |
| Garage Conversion | £8,000 - £15,000 |
Payment Structure
For Smaller Projects (Kitchens, Bathrooms, Carpentry Work)
Deposit: 5-10% upon booking to secure your slot and order materials
Progress payment: 40-45% at the midpoint of the project (typically when first fix is completed)
Final payment: 45-50% upon satisfactory completion
For Larger Projects (Extensions, Loft Conversions, Full Renovations)
Deposit: 5-10% upon booking to secure your slot and begin planning
Stage payments: Payments divided into agreed stages, typically:
Foundation/groundwork stage: 25-30%
First fix/structural stage: 25-30%
Second fix/finishing stage: 25-30%
Final payment: 10% retention upon satisfactory completion
Note: Payment structures are tailored to each project and clearly outlined in your quote. We never request payment upfront for work not yet completed.
Additional Costs to Consider
When budgeting for your project, please be aware of these potential additional costs:
- Architectural/Design Services: £1,500 – £5,000+
- Structural Engineer Reports: £500 – £2,000
- Planning Permission Application: £206 (government fee) + consultant fees
- Building Regulations Approval: £500 – £1,500
- Party Wall Agreements: £800 – £1,500 per neighbour
- Site Survey: £600 – £1,400
- Skip Hire/Waste Removal: £200 – £500
- Scaffolding: £800 – £1,500+ per month
- Temporary Accommodation (if required): Variable
- Contingency Fund: 10-15% of total project cost (recommended)
Important Notes
- About These Estimates
- All prices are estimates based on current UK market research for 2025-2026 and reflect typical costs in West Sussex
- Actual project costs vary significantly based on site conditions, access, material specifications, project complexity, and individual requirements
- All prices shown exclude VAT unless otherwise stated
- Prices may fluctuate due to material costs, supply chain issues, and market conditions
- These estimates are for guidance only and do not constitute a formal quote
- Value-Added Benefits
- A loft conversion can add up to 20-24% to your property value
- House extensions typically return 60-80% of investment in added property value
- Kitchen and bathroom renovations can add 5-10% to property value
- Quality renovations make properties more attractive to buyers and can reduce time on market
Get Your Free, No-obligation Quote
Ready to start your project? Contact Swanbourne Construction for a personalized quote tailored to your specific needs and requirements.
- 07470 078236
- Swanbourneconstruction@gmail.com
- 9 Mansfield Road, Bognor Regis PO22 9EZ
- www.swanbourneconstruction.co.uk
We serve Bognor Regis, Chichester, Arundel, and throughout West Sussex including Aldwick, Felpham, Pagham, Middleton-on-Sea, and surrounding areas.