Surrey · England
Gutter Sealing in Sidlow
Our applicators work in Sidlow on sealing leaking gutter joints, end caps, fascias, soffits and roofline trims. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Quick sealant fixes on gutters that didn’t last
- Dripping gutter ends
- Gaps along fascia and soffit joints
How we handle gutter sealing in Sidlow
Sealant only bonds to a clean, dry joint. That’s why we take out the old sealant and dirt first and the joint is dried before the new sealant goes in. We work on garage door frames, gutter end caps and uPVC fascias, and common reasons people get in touch are cracked sealant along roofline trims and fascia boards with gaps between them.
Outside joints can only be sealed when they’re dry, so work in Sidlow is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Every job is covered by a 12-month guarantee, wherever you are in Surrey.

- Place
- Sidlow (RH2)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Different surfaces, different methods
uPVC fascias
Fascia board joints can open up. We seal them neatly in a suitable colour.
Gutter end caps
A leaking end cap sends water straight down the wall. It’s a small job to fix.
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Check the gutters during heavy rain
- Clean out the gutters once or twice a year
- Look along the fascias for open joints
- Keep downpipes clear
Leave the new sealant to cure as we advise and avoid disturbing it.
A leaking garage frame lets water reach stored items. Resealing the frame is a quick job.
Places near Sidlow
What else we do in Sidlow
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Walls and rooflines in Sidlow
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Dovers Green School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Letting a property close to Salfords station? Then a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Sidlow is about 2 miles south of Reigate, in Surrey. For gutter sealing in and around Sidlow, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We are based in Crawley and cover Surrey. Sidlow is one of 395 places in Surrey we cover. We also work in Crawley, around 7 miles away.
Here we cover the RH2 postcode area for gutter sealing. Neighbouring places we cover for gutter sealing include Irons Bottom (1 mile south-west), South Park (1 mile north), Leigh (2 miles west), Reigate (2 miles north) and Dawesgreen (2 miles west). Larger places within reach include Epsom (9 miles north), Redhill (3 miles north-east), Ewell (10 miles north), Walton-on-Thames (15 miles north-west), Caterham (7 miles north-east) and Dorking (6 miles west).
Near you in Sidlow
Locally, jobs take us to homes and businesses close to Earlswood Common, Reigate School and Burys Court School, among other places. Sidlow’s nearest station is Salfords station, roughly 1.8 miles east. A little further out are Reigate Priory Museum (2 miles north) and East Surrey Hospital (1.8 miles north-east). For a walk, there’s Colley Hill and Reigate Heath.
Common questions in Sidlow
Do you cover smaller places like Sidlow?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Salfords station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Where do you work from?
Mr Mastic is based in Crawley. We cover Sidlow and the rest of Surrey.
Can you reach high gutters?
Single-storey and low-level gutters are straightforward. If it’s higher up, let us know and we will confirm the access.
Can you match the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
How long will you be here?
Most jobs take an hour or two for a few joints, longer for a full run, including preparation and clearing up. We’ll confirm how long when we quote.
Leave it or put it right?
A dripping gutter joint keeps wetting the same patch of wall. Over time that can stain brickwork, mark render and encourage damp so early sealing is worthwhile. Older cottages and farmhouses around Sidlow can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why choose Mr Mastic in Sidlow
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
- A sealant colour to suit the surroundings
- 12-month guarantee on every job
What we’re called out for in Sidlow
When a gutter sags, its joints open. Sealing won’t hold if the gutter keeps dropping so the brackets need attention first.
The most common problems we see are:
- Earlier gutter repairs that have peeled off
- Stop ends leaking at the end of a run
- Damp patches inside below a leaking gutter
- Old sealant on roofline trims that has split
If you live in an older home near Emmanuel Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Questions to ask before you book
- Is the old sealant removed completely?
- How long to leave it before use
- How the joint is cleaned and prepared
- Whether you can choose the colour
The process
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. The work usually takes an hour or two for a few joints, longer for a full run. In a small place like Sidlow, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at where the water is coming from and check the gutter is not broken or sagging.
- The joint or trim is cleaned out and old sealant removed.
- The area is dried so the sealant can bond.
- We seal the joint with a sealant made for gutters and outdoor use.
- The run is checked and any debris near the joints is cleared.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Mention if the joints have been sealed before
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Read more
What affects the cost of gutter sealing
For a quick quote, just ask. The main things that affect it are:
- How much there is to do
- Any mould that needs treating
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not guesswork. That is why we ask a few questions first.
Asking for a quote
To help us quote quickly, please include:
- The address or postcode of the job
- Whether it has been sealed before
- Any access issues, like height or stairs
- Whether it’s a home or a business
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
