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Wi-Fi surveys in St Albans and Hertfordshire
Our home patch. Ekahau Wi-Fi surveys for offices, warehouses, schools, care homes and hotels across Hertfordshire, from engineers based in St Albans.

Local, so it's quick and simple
We're based in Chiswell Green, on the edge of St Albans. Most Hertfordshire sites are under an hour away, so we can survey at short notice, come back for a follow-up without a travel charge stacking up, and be on site quickly if something needs looking at after install.
What we survey
- Offices and business parks: Hatfield, Welwyn Garden City, Watford, Hemel Hempstead, Stevenage
- Warehouses and logistics along the M1, M25 and A1(M): scanners, racking and roaming. See warehouse Wi-Fi.
- Schools and colleges: classroom density and safeguarding. See schools and education.
- Care homes: resident and nurse-call coverage. See care settings.
- Hotels, pubs and venues. See hospitality.
How it works
- Send floor plans or book a call. Our pre-survey questionnaire covers what we need.
- We survey on site with Ekahau equipment, measuring signal, signal-to-noise, interference and roaming.
- At the same visit we check cable routes, containment, comms room space and power. We're electricians as well, so nothing gets missed.
- You get heatmaps, findings in plain English and a design. See what you get.
- If you want, our own teams handle the business Wi-Fi installation and validate it.
Towns we cover
St Albans, Harpenden, Hatfield, Welwyn Garden City, Watford, Hemel Hempstead, Berkhamsted, Tring, Stevenage, Hitchin, Letchworth, Hertford, Ware, Bishop's Stortford, Potters Bar, Borehamwood, Radlett and Rickmansworth. Also Luton, Dunstable and north London.
Common questions
How quickly can you survey?
We'll give you a date when you enquire. Being local, urgent Hertfordshire jobs can often be fitted in sooner.
What does it cost?
It depends on floor area and survey type. See what a survey costs, or send plans for a fixed quote.
Can you fix Wi-Fi that's already been installed?
Yes. See Wi-Fi troubleshooting. A survey usually shows the cause within one visit.
Do you cover London as well?
Yes. See Wi-Fi site surveys in London.
Let's find out what your Wi-Fi is actually doing.
Book a survey and you get measured data, a design you can build to, and a number you can budget against — not an opinion.
Our cabling, containment and power are installed under the group's accreditations — NICEIC, Constructionline Gold, CHAS and SafeContractor, held by The Specialist Electrical Group Ltd.
Talk to SEGwifi
Tell us about the building and what is going wrong. We will come back within one working day with the survey that answers it — or tell you that you do not need one.