The Problem
There are occasions where astronauts need to repair expensive satellites such as Hobble Telescope. A big problem with that is difficulty of working with spacesuits manipulating delicate tools. A lot of money is being spent perfecting techniques, making tools, training and making flexible spacesuits to enable astronauts work efficiently.
Solution
A feasible solution is to build a space garage (SG1). It will be twice as big as the red liquid fuel tank of the Space Shuttle with a similar shape. It will be put into orbit permanently, so when a repair needs to be done, either the SG1 or the satellite is moved to one another into the right orbit. The satellite is then moved into SG1 through the main hatch.
SG1 has two main compartments. One contains air at atmospheric pressure to accommodate the astronauts. The other is for the satellite to be repaired. The air from this compartment is sucked in into a tank so the satellite can be housed. Then door is closed and it is refilled with air at atmospheric pressure.
Launch
It is in fact very easy to launch SG1 in one mission. It has a very similar shape to the Space Shuttle red liquid fuel capsule, so with some design modification the fuel tanks can be placed inside SG1. It simply replaces space shuttle and the pilot will be placed in a small capsule at the nose of the rocket, which is used to return to earth in the same way as with Russian Soyuz.
Air supply
Air is recycled as much as possible and would remain breathable for much longer than the duration of the mission. Even if that becomes a problem or the system malfunctions the crew can use their own air supply. The difference is the air within SG1 will provide the atmospheric pressure so using air masks will still free the body and hands to operate with outmost ease.
Emergency
In case of an incident the crew can hide in a shielded compartment at the back of the SG1. It provides enough protection for them to suit up and evacuate. An emergency return capsule can be attached to that compartment so if the SG1 is destroyed then they crew can escape and return to earth.
Micrometeoroid
The walls of SG1 are double layered sandwiching special gel that seals the wholes made by micrometeoroid. It stops the air escaping and gives time for the crew to fix the hole using a metal patch and glue.
Conclusion
SG1 will be relatively cheap and a very practical way to solve the problems associated with safety and comfort of repairs done in space. It can also be used as a temporary accommodation or be attached to the Space Stations.