Mikhail Sergeevich Gruminskii

Owner · Gms Boiler Services · HVAC · Alameda County · CA

Emailed — · Texted —

CSLB License Master, CLEAR, updated 2026-10-05

Activity

None yet.

Email

24 hours

Email · This week's change-outs

Mikhail,

Name and number after the homeowner asks. You do not quote.

Nathan Petty
760-916-0235

Mikhail, Nathan Petty, 858-224-3061. Any change-out this week where they asked?

48 hours after the second

Email · One intro

Mikhail,

If this week is quiet, no need to reply.

Nathan Petty
760-916-0235

Mikhail, Nathan Petty, 858-224-3061. Still fine to send one name.

1 week from the first

Email · Last note this week

Mikhail,

Last note. We will not show up at the install.

Nathan Petty
760-916-0235

Mikhail, Nathan Petty, 858-224-3061. Last note. Name and number only.