Independent UK guidePrices updated September 2026

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Conservatory roof replacement in Barnham

Reviewed byZaib Khan
Updated onSeptember 2026

What a new conservatory roof costs in Barnham in 2026, how the local weather affects each option, and free quotes from installers who cover BN18, PO20, PO22.

£10,850Typical tiled roof in Barnham, medium conservatory
22.3°CAverage July afternoon, 219 hours of sun that monthMet Office, England South East and Central South
1.9°CAverage January night, 43 air frosts a yearMet Office 1991 to 2020
£321,460Average home in Arun, +0.9% in a yearHM Land Registry, 2026-07

What a new conservatory roof costs in Barnham

Medium conservatory (about 4m x 3.5m), fitted, adjusted for South East labour costs.

RoofTypical in BarnhamRangeFitting
Tiled roof£10,850£8,350 to £13,6503 to 6 days
Glass roof£5,900£3,950 to £7,9002 to 4 days
New polycarbonate roof£4,400£3,050 to £5,9001 to 2 days
Hybrid roof£10,750£7,450 to £14,2504 to 7 days
Insulated roof panels£3,500£2,050 to £5,2001 to 3 days
Orangery conversion£27,700£15,800 to £39,5507 to 15 days

South East prices run about 13% above the UK middle, reflecting higher labour rates than most regions. Your quotes depend on the shape, the survey and the system. Full cost guide.

A typical tiled roof in Barnham (£10,850) works out at about 3.1% of the average semi-detached house price in Arun (£351,872, HM Land Registry 2026-07). That is the room you gain for the money, without building an extension.

Why conservatories in Barnham get too hot and too cold

Summers here are among the sunniest in the UK (about 219 hours of sunshine in July), so overheating is the main complaint. A solid roof, or solar control glass with a low g-value, makes the biggest difference. The chart shows the average daytime high and night time low for each month in the Met Office's England South East and Central South climate district, the closest match for Barnham. July afternoons here average 22.3°C against 19.6°C across the UK. Inside a south facing polycarbonate conservatory the air runs far hotter than outside on a sunny day, and colder on a clear winter night.

8°
2° J
8°
2° F
11°
3° M
14°
5° A
17°
8° M
20°
10° J
22°
12° J
22°
12° A
19°
10° S
15°
8° O
11°
5° N
8°
2° D
Average daily high (top) and low (bottom) by month, Met Office 1991 to 2020.
Old glass roofStandard double glazing, the typical before
Tiled roofUsing the room every month of the year
Glass roofKeeping the light and the view of the sky
New polycarbonate roofThe lowest cost fix for a leaking roof
Hybrid roofWarmth with pools of daylight
Insulated roof panelsA warmer room on a tighter budget
Orangery conversionA full extension feel without building a new room
Shorter bars on both sides mean a steadier room. Solid bar is the best published figure, pale bar the range across grades and tints. U-value in W/m²K; solar is the g-value or solar transmission. Figures from maker data (Ultraframe, Thermotec and others); hybrid and orangery are estimated from their solid and glazed areas. How we built this.

Homes in Arun

80,660Homes in ArunVOA council tax stock
38%Built 1965 to 1999, when most UK conservatories went up
35%Detached or semi-detached
£351,872Average semi-detached homeHM Land Registry 2026-07

Insulate or replace in Barnham?

If budget is the main worry, insulated roof panels fitted into the existing frame cost £2,050 to £5,200 here and make a noticeable difference to winter warmth and rain noise. A full lightweight tiled roof at £8,350 to £13,650 goes further: a plastered ceiling, much lower heat loss and a room that feels like part of the house. Cheap internal kits and blinds help with glare but do little for heat loss. Tiled roof vs insulated panels.

Conservatory roof repairs in Barnham

Leaks usually start at the box gutter, the wall flashing where the roof meets the house, or perished seals and end caps on polycarbonate sheets. A single repair can be worth doing on a roof under 10 years old. On an older polycarbonate or glass roof with repeated leaks, most homeowners find the money is better spent on a replacement that also fixes the heat and cold. Leaking roof: repair or replace.

Building control and planning in Barnham

Barnham is in the Arun council area, West Sussex. For a solid or tiled roof your installer applies for building control approval, either through Arun Council's building control team or a registered building control approver, and you should get a completion certificate at the end. Keep it: a buyer's solicitor will ask for it when you sell.

Planning permission is not usually needed to replace the roof of an existing conservatory. If your home is listed or in a conservation area, speak to Arun Council's planning team before you sign. Building regulations guide.

Nearby areas

Installers covering Barnham usually work across these towns too.

Conservatory roof questions in Barnham

How much does a conservatory roof replacement cost in Barnham?

In Barnham a lightweight tiled roof for a medium conservatory typically costs £8,350 to £13,650, a solar control glass roof £3,950 to £7,900, and insulated roof panels £2,050 to £5,200, fitted. Prices in South East run about 13% above the UK middle because of higher labour rates than most regions.

Do I need planning permission for a new conservatory roof in Barnham?

Usually not. Replacing the roof on an existing conservatory is normally permitted development. Check with Arun Council's planning team first if your home is listed, in a conservation area, or covered by an Article 4 direction. A solid tiled roof will need building control approval, which your installer should arrange.

Which conservatory roof suits the Barnham climate?

Summers here are among the sunniest in the UK (about 219 hours of sunshine in July), so overheating is the main complaint. A solid roof, or solar control glass with a low g-value, makes the biggest difference. In this part of the country, July afternoons average 22.3°C with around 219 hours of sunshine in July, and February nights average 1.8°C (Met Office 1991 to 2020 averages).

How do I find conservatory roof installers in Barnham?

Answer the questions on this page and we will pass your request to Leads 2 Trade, who introduce up to four installers covering BN18, PO20, PO22. Installers in their roof network need an LABC certificate for their roof system and an insurance backed guarantee. Always compare at least three written quotes.

How long does a conservatory roof replacement take?

A tiled roof takes 3 to 6 days on site, a glass roof 2 to 4 days and insulated panels 1 to 3 days. Lead times before the start date vary with local demand and the season.

Sources: Met Office UK climate averages 1991 to 2020; HM Land Registry UK House Price Index; VOA Council Tax: Stock of Properties; ONS; postcodes.io. Contains public sector information licensed under the Open Government Licence v3.0.

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