Hertfordshire · England
Haultwick Gutter Sealing
Sealing leaking gutter joints, end caps, fascias, soffits and roofline trims for homeowners, landlords and businesses in Haultwick. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Streaks down the brickwork from a leaking joint
- Trim joints where the sealant has failed
- Damp on an inside wall under a dripping gutter
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Gutter sealing in Haultwick
Our work covers gutter joints and end caps as well as fascias and soffits, along with roofline trims and garage door frames. It’s all about the joints, not replacing the gutter. We work on gutter end caps, roofline trims and garage door frames, and the jobs we see most are end caps that drip every time it rains and trim joints where the sealant has failed.
Outside joints can only be sealed when they’re dry, so work in Haultwick is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Big or small, it’s backed by our 12-month guarantee.

- Place
- Haultwick (SG11)
- Wider area
- Hertfordshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job usually takes anything from an hour or two to a few hours, and we tell you how long to leave it before we go. For a village or hamlet like Haultwick, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we trace the drip and check the gutter isn’t damaged.
- We remove the old sealant and clean the joint.
- We dry the joint so the new sealant can bond.
- A gutter sealant is applied to the joint.
- We check the run and clear debris near the joints.
Before we arrive
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Keep children and pets away from the work area
Ask for a quote
If you’re in Haultwick and need gutter sealing, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
What gutter sealing looks like in Haultwick
Historic houses like Aston Bury (about 3.9 miles west) are a reminder that the area around Haultwick has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. 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 Munden Church of England Voluntary Controlled Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. Letting a property close to Watton-At-Stone station? Then a gutter joint that drips onto the wall can turn into a damp complaint, so it’s worth checking. If you live in an older home near Parish Church of All Saints, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Haultwick is about 5 miles east of Stevenage, in Hertfordshire. Wherever you are in the SG11 postcode area, we cover gutter sealing for homes and businesses. We cover 381 towns and villages across Hertfordshire, large and small. There’s also a page for Chelmsford, about 26 miles away.
Work in SG11 works the same way as everywhere else we cover. We cover properties on The Street, Frogs Hall Lane and Gifford's Lane and the roads around them. Neighbouring places we cover for gutter sealing include Dane End (1 mile south), Whempstead (2 miles south-west), Burn's Green (2 miles west), Sacombe Green (2 miles south) and Sacombe (2 miles south). We also work in nearby towns such as Stevenage (5 miles west), St Albans (15 miles south-west), Bishop's Stortford (9 miles east), Welwyn Garden City (9 miles south-west), Harpenden (13 miles west) and Hitchin (10 miles north-west).
What’s near Haultwick
In Haultwick, that means homes and buildings near Rest And Welcome Public House and Ralph Sadleir Middle School and the streets around them. For rail, the closest station is Watton-At-Stone station, roughly 3.6 miles south-west. Other landmarks nearby include Benington Castle (2.6 miles west). The countryside around Haultwick includes Astonbury Wood.
Looking after it afterwards
Looking after new joints is easy:
- Clean out the gutters once or twice a year
- Keep ladders off the guttering
- Check fascia and soffit joints for gaps
- Check the gutters during heavy rain
Give the sealant the cure time we tell you and avoid disturbing it.
The sooner a gutter leak is sealed, the less water reaches the wall. If we find a bigger problem, we’ll tell you.
Haultwick: your questions answered
Is Haultwick in your area for gutter sealing?
Yes, Haultwick is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Will you come out to Haultwick?
Yes, Haultwick is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
How much does gutter sealing cost in Haultwick?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Where are you based?
Mr Mastic is based in Crawley. We cover Haultwick and the rest of Hertfordshire, along with the rest of our area.
Can a leaking gutter joint be sealed?
Yes, as long as the gutter itself is in good order. The joint is cleaned and dried first so the sealant bonds.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do.
How we quote for gutter sealing
The price is agreed before any work begins. It takes into account:
- How many areas need sealing
- When we can work, for business premises
- The size of the job
- How easy the joints are to reach
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Where the property is
- If it’s domestic, commercial or a hotel
- The rough size of the job
- What’s wrong with the joints now
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Different surfaces, different methods
uPVC fascias
Fascia board joints can open up. We seal them neatly in a suitable colour.
Soffit joints
Soffit joints are sealed in a colour to suit, where one is available.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Haultwick, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Also near Haultwick
Other services in Haultwick
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Leaks from the roof rather than a joint
- Fascias that need replacing
- A gutter length that has split
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Where we work in Haultwick
- Soffit joints
- Gutter joints
- uPVC fascias
- Roofline trims
- Gutter end caps
- Garage door frames
