Conservatory roof replacement in Dereham
Across 2024 and 2025 the Met Office 2 km model puts 865 mm a year on Dereham, which makes it the 50th wettest of the 100 towns we counted. On 257 days a year the hours from 8am to 4pm stay dry, so finding a fitting day is a question of watching the forecast, not waiting for summer.
At night it is a different story: 58 nights a year bring an hour of moderate or heavier rain, 66th highest of 100. We replace polycarbonate and glass conservatory roofs in Dereham with 75 mm insulated panel roofs from £3,000, fitted onto the frame you have.
- 257
- dry working days a year
- 58
- noise nights a year
- 865 mm
- rain a year
Dereham's rain, day by day
Every sliver is one day, darker for more rain; the orange marks underneath are dry working days. Met Office UKV 2 km model data for Dereham, January 2024 to December 2025.
- Dry or a trace
- Under 1 mm
- 1 to 5 mm
- 5 to 15 mm
- Over 15 mm
- Dry working day
When to book in Dereham
August, December and November gave Dereham the best odds of a dry working day; September gave the worst, at 60%.
The longest run of dry working days in a row was 27, ending in November 2024. The longest wait without one was 7 days. That is why we book roofs a week or two ahead and confirm the day on the forecast: a dry day turns up in almost every week of the year. When to book a roof swap has the full reasoning.
- 22Jan
- 20Feb
- 22Mar
- 20Apr
- 22May
- 21Jun
- 20Jul
- 27Aug
- 18Sep
- 21Oct
- 22Nov
- 25Dec
dry working days, the three highest picked out. Average of 2024 and 2025.
Rain at night in Dereham
We count a noise night whenever an hour between 11pm and 7am brings 0.5 mm of rain or more, the Met Office's moderate band. Dereham had 58 a year, fewer than the 65 of the average town, and 6 nights with a heavy hour over 4 mm.
In the lab, heavy rain on 25 mm polycarbonate measures 64.6 dB against 52.0 dB for double glazed roof glass. Nobody has published the same test for aluminium panel roofs, so we will not put a number on ours. How loud rain is on each kind of roof sets out what is measured.
- Light (under 0.5 mm an hour)472 h
- Moderate (0.5 to 4 mm)465 h
- Heavy (over 4 mm)22 h
Near Dereham
We fit panel roofs across the Broads, the Breckland and the Suffolk coast. The nearest towns in our ledger:
Guide prices in Dereham
The same as everywhere we work, fitted with the old roof taken away. Style nudges it; the survey fixes it in writing. What the price covers.
Questions from Dereham
How many dry days does Dereham get for fitting a roof?
Our ledger counts 257 dry working days a year in Dereham, days with under 0.2 mm of rain between 8am and 4pm. Most roofs need one; we pick it from the forecast in the week before.
Is a polycarbonate roof noisier in Dereham than elsewhere?
The roof is the same anywhere; the rain is not. Dereham has 58 noise nights a year against 65 in the average town we track, and 22 hours of heavy rain.
What does a new conservatory roof cost in Dereham?
Guide prices are the same as everywhere we work: from £3,000 for a small roof, £4,000 for medium and £5,000 for large, fixed in writing after a free survey.
Do you keep my conservatory frame?
Usually, yes. The bars, the dwarf wall and the frame get tested at the survey, and only a sound frame gets a panel roof price.
Worth reading before a Dereham survey
- When to bookBest time of year to replace a conservatory roof, read from two years of rain
- Fitting timeHow long does a conservatory roof replacement take?
- Roof materialsTypes of conservatory roof, and what each one is made of
- Weighing it upInsulated panels vs polycarbonate roof: which one earns its place
Price a panel roof in Dereham
Tap through seven questions for a guide range. The surveyor then measures, tests the frame and commits the figure to paper.