Hertfordshire · England
Hitchin Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for Hitchin, backed by a one-year guarantee. Ask us for a quote.
- Stop ends leaking at the end of a run
- Open joints in fascias and soffits
- Quick sealant fixes on gutters that didn’t last
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Watch for drips in a downpour
- Keep the gutters clear of debris
- Get leaks sealed before the wet months
- Make sure downpipes aren’t blocked
Give the sealant the cure time we tell you before poking or cleaning near it.
Rain getting in round a garage door frame can damage what’s stored inside. A reseal sorts it.
How we handle gutter sealing in Hitchin
Many dripping gutters are just a failed joint or end cap. We clean out the joint, dry it and reseal it with a sealant made for guttering. If the gutter is broken or sagging, we will tell you. We’re often asked to deal with gaps along fascia and soffit joints and old gutter sealant that has let go, on soffit joints, uPVC fascias and garage door frames.
Garage door frames, porches and roofline trims are all part of external work in a town like Hitchin. Each joint between different materials moves in its own way, so the sealant has to cope with that.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Hitchin (SG4, SG5)
- Wider area
- Hertfordshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of gutter sealing
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Access and height
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and send you a clear quote before work begins.
What to tell us for a quote
When you call or email, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Any previous sealing or DIY work
- The rough size of the job
Want a quote for gutter sealing? Please phone 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Walls and rooflines in Hitchin
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Hitchin Girls' School, its movement joints, gutters and trims need looking after like any other building’s. Letting a property close to Hitchin station? Then a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Hitchin is about 5 miles north-west of Stevenage, in Hertfordshire. From the centre of Hitchin to the outskirts, gutter sealing is available for homes and businesses alike. Hitchin is one of 381 places in Hertfordshire we cover for gutter sealing. London is on our list too, around 32 miles away.
Our applicators cover all of the SG4 and SG5 postcode area for gutter sealing and the streets around it. You will find streets such as Market Place, London Road and Harrison Close, all of which we cover. Main roads around Hitchin include the A505 and A600, so getting to you is simple. Close by, we work in Benslow (1 mile east), Poets Estate (1 mile east), Bearton (1 mile north-west), Walsworth (1 mile north-east) and Westmill (1 mile north-west). Within a short drive, we also cover Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east). Hitchin is among the bigger towns we cover in Hertfordshire.
What’s near Hitchin
In Hitchin, that means homes and buildings near Highbury Infant School and Nursery, Butts Close and Kingshott School and the streets around them. You’ll also find Radcliffe Arms (under half a mile north-east) and St Mary's Church (under half a mile south-west). Hitchin has its own railway station: Hitchin station. Well-known places in the area include Wymondley Castle (1.7 miles east) and Lister Hospital (3.1 miles south-east). For a walk, there’s Purwell Ninesprings and Markham's Hill.
What else we do in Hitchin
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Why it’s worth doing now in Hitchin
You do not need to replace a garage door because rain gets in round the frame. Sealing the frame normally stops it. Black mould and gaps in sealant don’t fix themselves, and in a busy home in Hitchin they get worse with every use. Replacing the sealant now is the simplest fix.
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why choose Mr Mastic in Hitchin
- A choice of colours where the product allows
- Domestic, commercial and hotel work
- We agree the colour with you first
- Arbo and Everbuild products
See what affects the cost or our reviews.
FAQs for Hitchin
Do you work for landlords with property near Hitchin station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Do you cover Hitchin for gutter sealing?
Yes. Our work covers London and the South East, and Hitchin is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Can you fit new guttering?
Replacement isn’t our trade. We will tell you if the gutter needs replacing so you can call the right trade.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
How long will you be here?
Typically it takes anything from an hour or two to a few hours. Bigger jobs take longer.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Can a leaking gutter joint be sealed?
Usually, if the gutter is sound. The joint is cleaned and dried first so the sealant bonds.
Surface by surface
Garage door frames
Failed sealant around a garage door frame lets water in. We cut it out and reseal.
Gutter joints
Joints between gutter lengths are the most common leak point. We clean, dry and reseal them.
What happens on the day
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take anything from an hour or two to a few hours. A visit in Hitchin needs access to the work and a place to park close by. If the job is outside, mention gates, side access and anything above ground floor.
- First, we find the drip and check the gutter isn’t cracked or sagging.
- The joint or trim is cleaned out and old sealant removed.
- We make sure the joint is dry before sealing.
- Gutter or exterior sealant is applied and finished.
- We look along the gutter and clear debris around the joints.
Before we arrive
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll talk you through the work and give you a clear price.
Read more
Common problems we fix in Hitchin
Gutter joints depend on seals that wear out. Temperature changes make gutters move and that movement opens up tired joints.
Keep an eye out for any of the following:
- Wet patches on the wall under a gutter joint
- End caps that drip every time it rains
- Damp on an inside wall under a dripping gutter
- Failed sealant on a garage door frame
Homes close to Church of the Holy Saviour include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Comparing quotes
- What product goes in the joint
- The length of the guarantee
- How the joint is cleaned and prepared
- Are they insured?