Our address details are:

Lambda Photometrics Ltd
Lambda House
Batford Mill
AL5 5BZ 

T: +44 (0)1582 764334
E: [email protected]

Lambda House – like.luck.safety
Unit A – torch.actors.thanks


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From Heathrow Terminals 1,2 and 3 Leave the airport via the M4 (west – away from Central London) to the first junction signposted to the M25. Take the M25 in the direction of Watford/Oxford. Stay on the M25 to junction 21 – M1 northbound (signposted to Luton & Birmingham). Leave the M1 at junction 10 (signposted to Luton & Luton Airport). Follow Luton Airport direction on Luton by-pass and leave at the first junction (sign posted B653 Wheathampstead). Follow B653 towards Wheathampstead for approximately 4.5 miles.

From Heathrow Terminal 4 Follow the signs for the M25 then as above.

From Central London Take the A41 and follow the signs to the M1. The M1 starts at the junction of the A5 and the A405 close to Brent Cross Shopping Centre and is well sign posted. Once on the M1 follow the directions as above.

From A1 north or southbound Leave the A1 at the junction north of the Hatfield tunnel (signposted to Welwyn Garden City, Hatfield and A414 Hertford). Follow the signs to Welwyn Garden City and at the first junction go back under the A1 signposted to Wheathampstead B653 and Luton. Stay on the B653 for 6.2 miles to Lambda.   


There is a direct train service from Gatwick to Harpenden, the Gatwick railway station is part of the airport complex. There are frequent services from St. Pancras International Station and the journey time is 25 – 35 minutes depending on the stops made. There are 6 per hour at busy periods and 4 trains per hour for most of the day. Kings Cross St. Pancras is on the Northern, Victoria, Piccadilly, Circle and Metropolitan lines of the London Underground.

Call Lambda before you leave or from Harpenden station and we will collect you