Slough · England
Gutter, fascia & soffit sealing in Farnham Royal, Slough
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for Farnham Royal, backed by a 12-month guarantee. Call for a quick quote.
- Gaps along fascia and soffit joints
- Stop ends leaking at the end of a run
- Water running down the wall below the gutter
Gutter sealing for homes and businesses in Farnham Royal
Sealant only bonds to a clean, dry joint. So the old sealant and grime come out first, then dry the joint before sealing. If you’re dealing with water running down the wall below the gutter and old sealant on roofline trims that has split, we can put it right, on uPVC fascias, gutter end caps and gutter joints alike.
Around Farnham Royal, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
A one-year guarantee comes as standard, so you’re covered after we’ve gone.

- Place
- Farnham Royal (SL2)
- Region
- Slough
- Cover
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
When it isn’t the sealant
We’d rather tell you now than do work that will not last, so these are the limits:
- Leaks from the roof rather than a joint
- Sagging gutters or broken brackets
- Boards that have decayed or split
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Gutter joints
- Soffit joints
- uPVC fascias
- Gutter end caps
- Garage door frames
- Roofline trims
How the job changes by surface
Roofline trims
Roofline trims rely on sealant at their joints. Split sealant lets water in.
Gutter end caps
Stop ends hold back water at the end of a run. When their seal fails, they drip.
Towns and villages near Farnham Royal
Other services in Farnham Royal
Leave it or put it right?
You do not need new fascias just because the joints have opened. Sealing the joints tidies them up as long as the boards are in good condition. Older cottages and farmhouses around Farnham Royal can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Why choose Mr Mastic in Farnham Royal
- White, clear, grey or coloured to suit, where the product allows
- Experience in homes, commercial sites and hotels
- 4.9 on Google from 180+ five-star reviews
- We leave the area clean and tidy
Read what affects the cost and our reviews.
Farnham Royal questions
Can you do gutter sealing in Farnham Royal?
Yes. Our work covers London and the South East, and Farnham Royal is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Farnham Royal?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
Can sealant stop a sagging gutter leaking?
No. A sagging gutter pulls its joints apart, so the brackets need fixing first.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Will you clear out my gutters?
The joints we seal are cleaned out and clear debris we find nearby. Cleaning the whole run is a different job.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Walls and rooflines in Farnham Royal
With historic houses such as Cliveden (about 3.3 miles west) nearby, there’s older building stock in the area around Farnham Royal as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like St Mary's Farnham Royal CofE Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Burnham station change hands often, and leaking gutter joints on a rental are best caught before they stain the walls. For an older house near a landmark such as Church of St Mary, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Farnham Royal is about 2 miles north of Slough, in Slough. We carry out gutter sealing for homeowners, landlords and businesses in Farnham Royal, as part of our work across Slough. Farnham Royal is one of 31 places in Slough we cover for gutter sealing. For nearby work, see our Reading page.
Postcode districts we cover here for gutter sealing: SL2. Streets in the area include Church Road, Sospel Court and Montague Close, all of which we cover. We also cover the places around Farnham Royal: Britwell (1 mile south-west), East Burnham (1 mile north-west), Farnham Common (1 mile north), Egypt (1 mile north) and Slough (2 miles south). We also work in nearby towns such as Langley (4 miles south-east), Upton (3 miles south-east), Datchet (4 miles south-east), Ditton (4 miles south-east), Poyle (6 miles south-east) and Colnbrook (6 miles south-east).
Local landmarks in Farnham Royal
Around Farnham Royal, our work takes us to homes and buildings near The Crown Public House, Cocksherd Wood and Caldicott School. Farnham Royal’s nearest station is Burnham station, about 1.8 miles south-west. Other landmarks nearby include Wexham Park Hospital (1.8 miles east) and Windsor Castle (4 miles south). Not far away are Burnham Beeches and Taplow Lake.
What we do, step by step
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes anything from an hour or two to a few hours from start to finish. Somewhere like Farnham Royal needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at the gutters, fascias and trims and agree the joints to seal.
- We clean out each joint.
- We make sure everything is dry.
- The sealant is applied and finished.
- We check our work before we leave.
How to prepare
- Let us know about earlier repairs to the joints
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Advice
What affects the cost of gutter sealing
The price is agreed before any work begins. It takes into account:
- How easy the joints are to reach
- Mould in or behind the old joints
- The product the joint needs
- The number of rooms or windows
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.
What to tell us for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- The rough size of the job
- Whether it has been sealed before
- The type of property
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
