Hertfordshire · England
Stevenage Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims in Stevenage, with a one-year guarantee on every job. Call for a quick quote.
- Failed sealant on a garage door frame
- Leaking gutter joints and stop ends
- Damp on an inside wall under a dripping gutter
Gutter sealing in Stevenage, done properly
Open fascia and soffit joints spoil the roofline and can let weather in. We seal them in a colour to suit where one is available. Typical jobs include drips from gutter joints and end caps and end caps that drip every time it rains, on uPVC fascias, roofline trims and gutter end caps.
Flats, offices and shops in Stevenage have long runs of movement joints, cladding joints and roofline trims. When those fail, water gets behind the face of the building, often unseen until it shows inside.
Whatever the size of the job, you get the same 12-month guarantee in Stevenage and across Hertfordshire.
- Location
- Stevenage (SG1, SG2, SG3)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When it isn’t the sealant
To be straight with you, there are a few things sealant will not fix:
- Brackets that have snapped or loosened
- Roof leaks, slipped tiles or failed flashing (a roofer’s job)
- Downpipes that are blocked or broken
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- Gutter end caps
- Gutter joints
- Roofline trims
- Soffit joints
- Garage door frames
- uPVC fascias
When to call us in Stevenage
A sealant applied to a damp or dirty joint won’t bond. Some quick repairs peel off within a season or two for this reason.
Keep an eye out for any of the following:
- Water dripping where gutter sections meet
- Dripping gutter ends
- Rain getting in around a garage door
- Damp patches inside below a leaking gutter
If you live in an older home near St Hugh & St John, older walls, gutters and the joints where extensions meet them need a flexible sealant.
What your quote should include
- When the joint can take water or movement
- Which sealant they’ll use, and why
- How hidden problems are handled
- What insurance they hold
How we quote for gutter sealing
For a quick quote, just ask. What matters most is:
- The old material and how stubborn it is
- The type of sealant required
- The number of rooms or windows
- How easy the joints are to reach
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- Where the property is
If you’re in Stevenage and need gutter sealing, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Deal with a drip before winter
- Look for streaks or damp on the wall below gutters
- Check the gutters during heavy rain
- Get a dropping gutter looked at quickly
Keep the gutters clear of leaves and moss so water does not sit on the joints. Water left in a gutter tests every joint.
Early sealing limits how much water hits the wall. If we find a bigger problem, we will tell you.
Stevenage: your questions answered
Can you help a landlord with a rental near Stevenage station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.
Can you do gutter sealing in Stevenage?
Yes, Stevenage is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Will sealant fix a dripping gutter joint?
Often, yes. A clean, dry joint resealed with gutter sealant generally stops the drip. A split or warped section needs replacing.
How long does the job take?
As a guide, most jobs take a few hours, depending on the number of joints and the access. Larger jobs naturally take longer, and we’ll say how long yours will take.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
What information do you need?
Let us know what needs doing and where, plus pictures if you have them. We will ask anything else we need to know.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available.
Towns and villages near Stevenage
Also in Stevenage
Gutter sealing in Stevenage: local notes
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. Stevenage is one of the post-war new towns. Many homes date from the post-war decades and were built in phases, so neighbouring houses often have rooflines and wall joints of the same age, wearing out at the same time.
Schools such as Saint Vincent de Paul Catholic Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Stevenage station change hands often, and a dripping gutter joint or loose fascia trim is easy to miss until damp shows inside.
Stevenage is about 26 miles east of Milton Keynes, in Hertfordshire. If you need gutter sealing in Stevenage, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We are based in Crawley and cover Hertfordshire, Stevenage included. Stevenage is one of 381 places in Hertfordshire we cover. Our London page covers work nearby.
All of SG1, SG2 and SG3 is within our area for gutter sealing, from the main roads to the quietest streets. Streets in the area include King Pin Square, Market Square and Market Place, all of which we cover. Stevenage is on the A602 and B197, which makes it straightforward to reach. Close by, we work in Bedwell (1 mile south-west), Pin Green (1 mile north-west), Chells (1 mile east), St Nicholas (1 mile north) and Rooks Nest (1 mile north). We also work in nearby towns such as St Albans (13 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (8 miles south), Harpenden (10 miles south-west), Hitchin (5 miles north-west) and Hoddesdon (13 miles south-east). Stevenage is one of the larger places we cover in Hertfordshire.
Near you in Stevenage
Typical jobs here are in homes near The Heathcote School, Church of Saint Nicholas and Marriotts School, among other places. The closest station to Stevenage is Stevenage station, about 1.2 miles south-west. A little further out are Benington Castle (2.9 miles east) and Stevenage Museum (0.8 miles south-west). Open spaces near Stevenage include Pryor's Wood.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
How it works
We keep the work tidy and contained to the joints we are treating. The job generally takes an hour or two for a few joints, longer for a full run, and we tell you how long to leave it before we go. Jobs in a place the size of Stevenage range from town-centre flats to offices and family homes. Whichever it is, tell us how to get in, where to park and where the work is.
- First we trace the drip and check the gutter is not damaged.
- The old sealant and dirt are cleaned out of the joint.
- The joint is dried before sealing.
- A gutter sealant is applied to the joint.
- The gutter is checked and debris around the joints cleared.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
We quote each job on its own. Just ring 0345 464 0079 or drop us an email with the details.
Related advice
Landlords, agents and businesses in Stevenage
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.